What Is Control Line On Pregnancy Test?

Why is the control line so dark

Once hCG is successfully sandwiched, when you take a pregnancy test this triggers release of a dye —that’s the dark line on a pregnancy test that means you’re pregnant! The first line on a pregnancy test is a control test that simply makes sure the antibodies and dye are working.
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Does the C line appear first in pregnancy test?

How to interpret pregnancy test results: – After following the instructions to take the test, you can view your results in the test window. The test window shows two lines—one for the control line (C) to make sure the test worked and another, the test line (T), that shows a positive result.

• Positive: If two lines show up, even if the test line (T) is very faint, that’s a positive—or pregnant result.
• Negative: If only the control line (C) shows up, the test didn’t detect hCG. Either you’re not pregnant or it’s too early to test.
• Invalid: If only the test line (T) shows up, or no lines develop, the test didn’t work. This could mean the absorbent tip wasn’t saturated with enough urine, or the test is expired or damaged. Grab another test and try again. If you still get an invalid result, contact us.

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Can the test line appear after the control line?

If the test has worked – and you are using a visual test – you will always see the ‘control line’– but if you’re pregnant, another line will also develop. Sometimes it’s easy to say whether the pregnancy test is positive or not, but sometimes this other line can be very faint.
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Why is my test line darker than my control line

Test line darker than control line Get updates on how your baby develops, your body changes, and what you can expect during each week of your pregnancy by signing up to the, Bee1710 · 02/04/2020 22:36 Hi, I took test 2 days late (top 2) and 3 days late (bottom 2).

The test line is darker than the control line isn’t it the opposite? Have they mistakenly placed the strip opposite way so the control line is actually the test line. Also the 2nd and 4th test I took after holding pee forfor more than 5 hours so I’m assuming that’s why it’s dark, Plus the test line came straight away doesn’t it take a minute or two to come up.

these are not expired tests and were from 2 separate boxes. Can they mess up 2 batches that were ordered months apart (one box I had bought months ago the other few days ago) Please or to access all these features Persipan · 02/04/2020 23:09 The test line can be darker than the control line once your HCG level rises; it’s normal and nothing to be concerned about. With FRERs, they’re very sensitive, so it’s something that happens relatively early on. Congratulations! Please or to access all these features BuffaloCauliflower · 04/04/2020 17:52 Please or to access all these features BuffaloCauliflower · 04/04/2020 17:55 I also did a One Step test yesterday because I was feeling a bit anxious (I’m 7 weeks.) and the test line came up thicker and stronger than the control line! Please or to access all these features Please or to access all these features ChampooPapi · 05/04/2020 10:37 @Bee1710 congratulations! What you have there is a positive pregnancy test 👣✨ Mumsnet can definitely skew views about what tests look like because people (including me this third time round) test so God dam early.

Until this pregnancy I thought all pregnancy tests looked like yours because my first two pregnancies I tested about a week to ten days after I was due af. So all my tests previously have had fat strong lines bigger then the control. Looking at the two outcomes of those playing in front of me right now 😄 Please or to access all these features Bee1710 · 05/04/2020 22:07 Thank you so so much everyone.

Pregnancy Test: Positive vs Negative Results Time Lapse

@BuffaloCauliflower many congratulations @ChampooPapi thank You!! Haha thats sweet. Please or to access all these features SYYY · 04/09/2020 14:05 Hello, just adding to this thread as I am one day late (but only for second period since mirena removal after 4.5 years with no period) and have just done a basic boots test and the test line is strong and the control line is faint, but there are definitely 2 lines. I am worried I mis-fired when I was doing it and some went above the arrow – would you suggest doing a second test just to be sure? Please or to access all these features SallyCinnamon3009 · 06/09/2020 13:31 Mine were exactly the same when I was testing in May string line and really faint control line which got fainter. Caused me a couple of days of panic but now 20 weeks along with a healthy baby boy Please or to access all these features BertieBotts · 06/09/2020 13:36 @SYYY Hello, just adding to this thread as I am one day late (but only for second period since mirena removal after 4.5 years with no period) and have just done a basic boots test and the test line is strong and the control line is faint, but there are definitely 2 lines. I am worried I mis-fired when I was doing it and some went above the arrow – would you suggest doing a second test just to be sure? No, you’ve just tested a bit early. Wait 48 hours and test again and the line will be stronger 🙂 Please or to access all these features Please create an account To comment on this thread you need to create a Mumsnet account. Trending in Christmas Math.max( 25, Math.floor( 0.15 * (type === ‘x’ ? window.innerWidth || document.body.clientWidth : window.innerHeight || document.body.clientHeight) ) ), // Minimum velocity the gesture must be moving when the gesture ends to be // considered a swipe. velocityThreshold: 5, // Used to calculate the distance threshold to ignore the gestures velocity // and always consider it a swipe. disregardVelocityThreshold: (type, self) => Math.floor(0.5 * (type === ‘x’ ? self.element.clientWidth : self.element.clientHeight)), // Point at which the pointer moved too much to consider it a tap or longpress // gesture. pressThreshold: 8, // If true, swiping in a diagonal direction will fire both a horizontal and a // vertical swipe. // If false, whichever direction the pointer moved more will be the only swipe // fired. diagonalSwipes: false, // The degree limit to consider a swipe when diagonalSwipes is true. diagonalLimit: Math.tan(((45 * 1.5) / 180) * Math.PI), // Listen to mouse events in addition to touch events. (For desktop support.) mouseSupport: true, } const gesture = new TinyGesture($refs.modal, options); gesture.on(‘swipeleft’, () => ); gesture.on(‘swiperight’, () => ); } } x-on:keydown.left=$dispatch(‘modal-navigate-left’) x-on:keydown.right=$dispatch(‘modal-navigate-right’) x-on:keydown.esc=$dispatch(‘modal-esc’) x-init=handleSwipe() x-ref=modal> ) ; > : Test line darker than control line
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Where is the control window on a pregnancy test

If you are still unsure of your result, you should wait at least 3 days before testing again, taking care to follow instructions. For your result to be ‘Not Pregnant’ there must be a blue line in the Control Window and a ‘-‘ (minus) symbol in the Result Window within 10 minutes of performing the test.
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What if test line is lighter than control line?

How Does a Pregnancy Test Work? – For a quick primer, at-home pregnancy tests check your urine for Human Chorionic Gonadotropin hormone, or hCG, which ramps up quickly in your body after fertilization. The lines on a pregnancy test develop color if hCG is detected. An at-home First Response™ pregnancy test works like this:

Special reagents are deposited at 2 locations on a pregnancy test strip, forming the “control line” and the “test line.” These test reagents may appear as off-white/slightly gray lines on the test strip – before or after use. In a First Response™ pregnancy test, these reagents are gold nanoparticles, which appear pink in color. They are responsible for turning the lines pink once the test is used. If no hCG is detected in your urine, only the control line will appear pink colored. If hCG is present in the urine, both the test line and control line will appear pink. Two pink lines indicate a positive result, even if one line is fainter than the other.

Some tests, like First Response™ Early Result Pregnancy Tests, are very sensitive and can detect lower levels of hCG so you can test as early as 6 days sooner.*
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Should the control line on a pregnancy test be dark?

Different Line Colors – When taking a pregnancy test, any line in the test indication area is considered a positive pregnancy test, even if it is lighter than the control line. The darker line is usually the control line. This is not a sign of a problem with the pregnancy or the pregnancy test, assuming it came up within the time limits of the test.

• It does not mean your pregnancy is in danger.
• It does not mean that you need to do anything special.
• It could be because at the time you tested your hCG levels (pregnancy hormone measured by the test) is high enough to trigger the test but not as high as later in pregnancy.
•   Sometimes this second line is so faint, you can barely see it.

If there is a line, not an evaporation line, but a true line, no matter how light, you should read that as a positive pregnancy test.
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What do control line represent?

A full-fuselage aerobatic control line Strega in flight Control line (also called U-Control ) is a simple and light way of controlling a flying model aircraft, The aircraft is connected to the operator by a pair of lines, attached to a handle, that work the elevator of the model.

• This allows the model to be controlled in the pitch axis,
• It is constrained to fly on the surface of a hemisphere by the control lines.
• The control lines are usually either stranded stainless steel cable or solid metal wires of anywhere from 0.008 in (0.20 mm) to 0.021 in (0.53 mm).
• Sewing thread or braided fishing line may be used instead of wires, but air resistance is greater.

A third line is sometimes used to control the engine throttle, and more lines may be added to control other functions. Electrical signals sent over the wires are sometimes used in scale models to control functions such as retracting undercarriage and flaps.

1. There is also a control system that uses a single solid wire, this is called Monoline.
2. When the pilot twists the wire around its axis, a spiral inside the airplane spins to move the elevator.
3. While it can be used with some success on any type of model, it is best for speed models where the reduced aerodynamic drag of the single line is a significant advantage.

The control provided is not as precise as the two-line control system. Almost all control-line models are powered with conventional model aircraft engines of various types. It is possible to fly control-line models that do not use on-board propulsion, in a mode called “whip-powered”, where the pilot “leading” the model, whose lines are attached to a fishing or similar pole, supplying the necessary energy to keep the airplane aloft, in a fashion similar to kite-flying.
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What does C and T stands for in pregnancy test?

H ow do I read the test results? – Pregnancy hormone levels present – 2 red lines in both the test window (T) and control window (C) means you may have retained products of conception. One line may be lighter than the other; they do not have to match. No pregnancy hormone level present 1 red line in the control window (C) means that your pregnancy hormone levels are falling and the products of conception has been passed. Invalid Result The result is invalid (the test has not worked) if no red line appears in the control window (C), even if a line appears in the test window (T). You should repeat the test with a new midstream urine test using a new device. What will happen next?

1. If you are well and your test is negative you will be discharged.
2. If the test remains weakly positive (faint line) we will book you in for an assessment.
3. If you have not had any change in symptoms and the test remains strongly positive you will be asked to return to the hospital for assessment and an ultrasound scan.

When will my periods return to normal? If your periods were regular before you got pregnant, then your periods should return to normal within 4-6 weeks. This will also depend on what type of contraception you are taking.
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Does one line on C mean positive?

Read results after 15 minutes. One red line (C) – indicates a neg- ative result, Two red lines (C and T) – indicate a positive result. One line (T) – is an invalid test (re-do the test).
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What does a invalid pregnancy test look like

What do you do if you have an invalid pregnancy test result? – An invalid pregnancy test is not the same as getting a false result. Most at home pregnancy tests have two windows: a control window and a test window. If a line does not appear in the control window, the test is invalid,

1. Even if a line appears in the test window, a blank control window means the test is invalid.
2. If you get an invalid pregnancy test result, ignore whatever result it gives you.
3. It’s likely that the test is either faulty or expired, or that there wasn’t enough urine on the test to produce a result.
4. Check the expiration date on the box and, if they’re not expired, take a new one.

If this keeps happening, try using a different brand and take more than one to confirm your results are accurate. Always remember to read the instructions and look at your results when they advise, not before or after. Testing for pregnancy isn’t as simple as any of us thought! Stix is here to make it easier.
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Why is my control line lighter than the test line?

How Does a Pregnancy Test Work? – For a quick primer, at-home pregnancy tests check your urine for Human Chorionic Gonadotropin hormone, or hCG, which ramps up quickly in your body after fertilization. The lines on a pregnancy test develop color if hCG is detected. An at-home First Response™ pregnancy test works like this:

Special reagents are deposited at 2 locations on a pregnancy test strip, forming the “control line” and the “test line.” These test reagents may appear as off-white/slightly gray lines on the test strip – before or after use. In a First Response™ pregnancy test, these reagents are gold nanoparticles, which appear pink in color. They are responsible for turning the lines pink once the test is used. If no hCG is detected in your urine, only the control line will appear pink colored. If hCG is present in the urine, both the test line and control line will appear pink. Two pink lines indicate a positive result, even if one line is fainter than the other.

Some tests, like First Response™ Early Result Pregnancy Tests, are very sensitive and can detect lower levels of hCG so you can test as early as 6 days sooner.*
View complete answer

Should the control line be darker on a pregnancy test?

Different Line Colors – When taking a pregnancy test, any line in the test indication area is considered a positive pregnancy test, even if it is lighter than the control line. The darker line is usually the control line. This is not a sign of a problem with the pregnancy or the pregnancy test, assuming it came up within the time limits of the test.

• It does not mean your pregnancy is in danger.
• It does not mean that you need to do anything special.
• It could be because at the time you tested your hCG levels (pregnancy hormone measured by the test) is high enough to trigger the test but not as high as later in pregnancy.
•   Sometimes this second line is so faint, you can barely see it.

If there is a line, not an evaporation line, but a true line, no matter how light, you should read that as a positive pregnancy test.
View complete answer

Why is my test line darker than my control line?

Test line darker than control line Get updates on how your baby develops, your body changes, and what you can expect during each week of your pregnancy by signing up to the, Bee1710 · 02/04/2020 22:36 Hi, I took test 2 days late (top 2) and 3 days late (bottom 2).

1. The test line is darker than the control line isn’t it the opposite? Have they mistakenly placed the strip opposite way so the control line is actually the test line.
2. Also the 2nd and 4th test I took after holding pee forfor more than 5 hours so I’m assuming that’s why it’s dark,
3. Plus the test line came straight away doesn’t it take a minute or two to come up.

these are not expired tests and were from 2 separate boxes. Can they mess up 2 batches that were ordered months apart (one box I had bought months ago the other few days ago) Please or to access all these features Persipan · 02/04/2020 23:09 The test line can be darker than the control line once your HCG level rises; it’s normal and nothing to be concerned about. With FRERs, they’re very sensitive, so it’s something that happens relatively early on. Congratulations! Please or to access all these features BuffaloCauliflower · 04/04/2020 17:52 Please or to access all these features BuffaloCauliflower · 04/04/2020 17:55 I also did a One Step test yesterday because I was feeling a bit anxious (I’m 7 weeks.) and the test line came up thicker and stronger than the control line! Please or to access all these features Please or to access all these features ChampooPapi · 05/04/2020 10:37 @Bee1710 congratulations! What you have there is a positive pregnancy test 👣✨ Mumsnet can definitely skew views about what tests look like because people (including me this third time round) test so God dam early.

Until this pregnancy I thought all pregnancy tests looked like yours because my first two pregnancies I tested about a week to ten days after I was due af. So all my tests previously have had fat strong lines bigger then the control. Looking at the two outcomes of those playing in front of me right now 😄 Please or to access all these features Bee1710 · 05/04/2020 22:07 Thank you so so much everyone.

@BuffaloCauliflower many congratulations @ChampooPapi thank You!! Haha thats sweet. Please or to access all these features SYYY · 04/09/2020 14:05 Hello, just adding to this thread as I am one day late (but only for second period since mirena removal after 4.5 years with no period) and have just done a basic boots test and the test line is strong and the control line is faint, but there are definitely 2 lines. I am worried I mis-fired when I was doing it and some went above the arrow – would you suggest doing a second test just to be sure? Please or to access all these features SallyCinnamon3009 · 06/09/2020 13:31 Mine were exactly the same when I was testing in May string line and really faint control line which got fainter. Caused me a couple of days of panic but now 20 weeks along with a healthy baby boy Please or to access all these features BertieBotts · 06/09/2020 13:36 @SYYY Hello, just adding to this thread as I am one day late (but only for second period since mirena removal after 4.5 years with no period) and have just done a basic boots test and the test line is strong and the control line is faint, but there are definitely 2 lines. I am worried I mis-fired when I was doing it and some went above the arrow – would you suggest doing a second test just to be sure? No, you’ve just tested a bit early. Wait 48 hours and test again and the line will be stronger 🙂 Please or to access all these features Please create an account To comment on this thread you need to create a Mumsnet account. Trending in Christmas Math.max( 25, Math.floor( 0.15 * (type === ‘x’ ? window.innerWidth || document.body.clientWidth : window.innerHeight || document.body.clientHeight) ) ), // Minimum velocity the gesture must be moving when the gesture ends to be // considered a swipe. velocityThreshold: 5, // Used to calculate the distance threshold to ignore the gestures velocity // and always consider it a swipe. disregardVelocityThreshold: (type, self) => Math.floor(0.5 * (type === ‘x’ ? self.element.clientWidth : self.element.clientHeight)), // Point at which the pointer moved too much to consider it a tap or longpress // gesture. pressThreshold: 8, // If true, swiping in a diagonal direction will fire both a horizontal and a // vertical swipe. // If false, whichever direction the pointer moved more will be the only swipe // fired. diagonalSwipes: false, // The degree limit to consider a swipe when diagonalSwipes is true. diagonalLimit: Math.tan(((45 * 1.5) / 180) * Math.PI), // Listen to mouse events in addition to touch events. (For desktop support.) mouseSupport: true, } const gesture = new TinyGesture($refs.modal, options); gesture.on(‘swipeleft’, () => ); gesture.on(‘swiperight’, () => ); } } x-on:keydown.left=$dispatch(‘modal-navigate-left’) x-on:keydown.right=$dispatch(‘modal-navigate-right’) x-on:keydown.esc=$dispatch(‘modal-esc’) x-init=handleSwipe() x-ref=modal> ) ; > : Test line darker than control line
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Does a lighter pregnancy test mean miscarriage

Disregard Color of Test Lines – Having a dark test line one day and a very light test line the next day is not a sign of miscarriage, but more likely an indicator of how much water you have had to drink that day. You may be tempted to take multiple pregnancy tests over the next few days to make sure that the result is real.
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