Positive test followed by negative

picklesplus2 · August 2012

Hi! A couple nights ago, I took a First Response and got a faint line. I took another test the next evening and got a negative. Has this ever happened to anyone? I should be getting my period around the 13th. I keep reading that a line is a line and there's no way it would show at all if I wasn't pregnant and that false positives are very rare. I'm trying to relax, give it a few days, and not obsess, but that's easier said than done!

TrudyCampbell · August 2012

False positives are pretty rare. I'd test again in a few days but you're right- it's nearly impossible to wait! GL.

Jcat123 · August 2012

That happened to me as well. The first time I got a positive and then I drank a bunch of water to test again and a few hours later I got a negative. The problem was a prob diluted the hormone. Well, of course then I ran to the store and bought more tests. Next two tests came out positive, and my First Response one was really faint as well. But a line is a line! And I'm now 9 weeks along. Good luck!

Ciconrad · August 2012

This early on when your hcg levels are so low, the concentration of your urine can affect the test. You can get a line on one and a few hours later not get one if you've drank a lot of fluids.

Not to scare you - but there are also chemical pregnancies where you have a light line for a few days before you get your period around the same time you usually would. They are actually fairly common but most people don't even know it because they aren't testing that early.

Test with your urine first thing in the morning to get the most accurate test.

rosesarepink · August 2012

How long did you wait before seeing the faint line? I thought I saw a line when I was testing but it showed up well after the time frame in the instructions (10 mins I think) and it turned out to be a false positive. I'd test again first thing in the morning right after you wake up (before you drink anything) and that test should be pretty accurate. This time around when I took the test, the line showed up immediately and I didn't have to wait at all.

Ciconrad · August 2012

Oh and was it a pink dye test? Blue dye tests are notorious for showing light lines after the testing time frame.

picklesplus2 · August 2012

It was a pink line test and the line showed up at three minutes. I set a timer and checked right away. I did read about a chemical pregnancy, too. I'll just have to keep my mind off it for a few days. Thanks for the advice!

picklesplus2 · August 2012

GhostMonkey:
picklesplus2:
It was a pink line test and the line showed up at three minutes. I set a timer and checked right away. I did read about a chemical pregnancy, too. I'll just have to keep my mind off it for a few days. Thanks for the advice!
Or maybe try testing in the morning like the directions tell you to.

The directions say you can test at any time of the day.

[Deleted User] · August 2012

picklesplus2:
GhostMonkey:
picklesplus2:
It was a pink line test and the line showed up at three minutes. I set a timer and checked right away. I did read about a chemical pregnancy, too. I'll just have to keep my mind off it for a few days. Thanks for the advice!
Or maybe try testing in the morning like the directions tell you to.

The directions say you can test at any time of the day.

So, uh, why are you bothering to ask people questions? You seem to know everything.

magel050485 · August 2012

Test with FMU when you are due for your period. It says right on the package that women that are pregnant and test that early (with FMU) have like an 80% chance of getting a positive. So your urine could not have been concentrated enough with the second test. Or, you could be experiencing a chemical pregnancy.

ShawMich · August 2012

Were they different tests? Sometimes tests are more sensitive than others.

As they say, a line is a line. Try testing with FMU. If you still are uncertain, ask your doctor for a blood test.

Ilovebeingamom · August 2012

I would try to wait until your period is due and take it again. Were they the same tests?

Chocodoxies · August 2012

TrudyCampbell:
False positives are pretty rare. I'd test again in a few days but you're right- it's nearly impossible to wait! GL.

This is true, however I got a false positive after 4 years of infertility and DH and I were beside ourselves. Add to that our false positive was a Clearblue Digital and you can see why we were so shocked. I went to my RE the day after my + and had my HCG levels tested, I would suggest you do the same. You can always test the morning of for higher HCG concentration in your urine until your HCG levels come back from the lab.

AshleyDG83 · August 2012

TrudyCampbell:
False positives are pretty rare. I'd test again in a few days but you're right- it's nearly impossible to wait! GL.

This. If you can wait, that would be best, but I never could!

lucy11111 · August 2012

sofamonkey:
picklesplus2:
GhostMonkey:
picklesplus2:
It was a pink line test and the line showed up at three minutes. I set a timer and checked right away. I did read about a chemical pregnancy, too. I'll just have to keep my mind off it for a few days. Thanks for the advice!
Or maybe try testing in the morning like the directions tell you to.

The directions say you can test at any time of the day.
So, uh, why are you bothering to ask people questions? You seem to know everything.

holy unnecessary snotty answer...how does saying the test said she can use it anytime equate her knowing everything?

picklesplus2 · August 2012

lucy11111:
sofamonkey:
picklesplus2:
GhostMonkey:
picklesplus2:
It was a pink line test and the line showed up at three minutes. I set a timer and checked right away. I did read about a chemical pregnancy, too. I'll just have to keep my mind off it for a few days. Thanks for the advice!
Or maybe try testing in the morning like the directions tell you to.

The directions say you can test at any time of the day.
So, uh, why are you bothering to ask people questions? You seem to know everything.
holy unnecessary snotty answer...how does saying the test said she can use it anytime equate her knowing everything?

Thanks, Lucy. Exactly my thoughts.

ggatlanta · August 2012

I hate to tell you my experience, since I fear it will not make you feel entirely better, but since you asked, yes, that has happened to me. Twice I have had a faint line that disappeared on a subsequent test (once it disappeared later that day, and another time it disappeared the next day); both times they turned out to be chemical pregnancies. Both times I ended up starting my "period" around the time I would have expected it, give or take a few days, and if I had not tested early, I never would have known. But just because that happened to me doesn't mean it will happen to you: it could, but I am sure for every story like mine there's a baby born to someone who had a less-than-clear POAS result.

Last but not least, because I was not expecting this pregnancy, I didn't test at all, so I definitely could have had the exact same come-and-go positives this time - and this baby has stuck (fingers crossed!). So for all we know, I might have experienced exactly what you're going through myself for a third time, and then had a (so far) healthy pregnancy after all.

Good luck!

Mrs.DeliaMarieP · August 2012

You are still super early, and if your urine was concentrated the day of the positive but then diluted the next afternoon, that can definitely explain the neg result. I recommend using second morning urine. Get up and pee early, don't eat or drink anything for a while and then pee again and use that urine. I found with this pregnancy that my first morning urine didn't give me as clear if a result as my second did. And I took tons of tests with this one, so plenty to be able to notice a trend. Good luck!

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