Pregnancy Test Faint Lines and Evaporation Lines

The Two Big Pregnancy Test Questions:
1) How Early Can I Test for Pregnancy?
2) What Does a Faint Line Mean on a Pregnancy Test?

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How Early Can I Test for Pregnancy?
One question women frequently ask when trying to conceive is: How long do I have to wait before I can take a pregnancy test? Though hCG is produced at different rates in different women, there are general timelines for deciding when to test. However, when testing on the early side, do not rely on one test for conclusive results - especially a negative result: the hCG threshold for displaying a positive result on a home pregnancy test may not yet have been reached.
 
Early Detection Pregnancy Tests
 
When a woman becomes pregnant, the amount of hCG in her system should be around 25 mIU at 10 dpo (days past ovulation), 50 mIU at 12 dpo, 100 mIU at around two weeks dpo (these are averages that may deviate among different women). Test sensitivity equates with early-detection - and the lower the number, the sooner a test can detect pregnancy. At 20 MIU test sensitivity, you can begin testing at 7-10 days post ovulation, though the earlier you begin testing, the higher chance you have of getting a false negative. Early-Pregnancy-Tests.com carries early-detection pregnancy tests capable of detecting just 20 miu/ml hcg.
 
Here, implantation of the fertilized egg needs to take place before hCG is produced by the developing placenta, and that generally occurs at 6-10 dpo. If you decide to test early, make sure you perform a few follow-up tests every other day using first morning urine. Your hCG levels should rise exponentially, doubling every 2 days - which means that the follow up tests should eventually detect pregnancy if you are, in fact, pregnant.

For earliest detection of pregnancy, use first morning urine, as this urine sample contains the most concentrated amount of hCG. If using first morning urine is not feasible, avoiding urination for several hours before using a pregnancy test.
 Faint Line
A faint color band in the test area of a pregnancy test indicates, in most circumstances, a positive result for pregnancy.
However, a faint line appearing after the designated reaction time of the test may be an "evaporation line".
What Does a Faint Line Mean on a Pregnancy Test?
On a pregnancy test, a faint test line - or color band - is usually indicative of a positive result, as long as it's read within the time frame - or reaction time of the test (usually at 5-10 minutes). If you perform the pregnancy test properly and read results within the recommended time frame, then a faint or weak color band in the test area is very likely a positive pregnancy test.

Evaporation Lines
Evaporation lines, however, can confound results if tests are not interpreted within the clinically recommended time frame. An evaporation line develops when the urine on the test area begins to dry, leaving a faint, usually colorless line. Evaporation lines appear to show up (or not show up) as a result of the composition of the particular urine specimen - and they may appear on any test regardless of brand.

Explanations for Faint Positives
  • Testing Too Early: If you test too soon, hCG may not be at a sufficient level for test detection. See the section above on determining when to take a pregnancy test.

  • Low Test Sensitivity: Different tests detect hCG at different levels, from 20MIU to 100MIU or more. 20 MIU tests will display a faint line when when hCG levels are at 20 MIU, while less sensitive tests will display a negative result. At 50 MIU levels, a 20 MIU test will show a stronger color band while a 50 MIU test will show a very faint band.

  • Dilution of Urine Specimen: Urine specimens may be diluted due to frequent urination or consumption of liquids. First morning urine is recommended for pregnancy testing as it contains the most concentrated presence of hCG.

  • Chemical pregnancy: Sometimes an early pregnancy is detected - followed by negative test results. A chemical pregnancy means implantation takes place (hCG is produced for a short time) followed by a miscarriage (generally, before any other pregnancy symptoms are detected).

  • Evaporation Lines: Always read your test results within the test reaction time (usually 5 minutes) as evaporation lines can develop as the urine dries on the test area. Evaporation lines appear to show up (or not show up) as a result of the composition of the particular urine specimen - and they may appear on any test regardless of brand.
Remember, a pregnancy test does not function like "light switch" - and just turn on: different hCG levels will produce different gradients of color bands (from very light, faint lines early in pregnancy to dark, rich color lines later on as hCG develops).
Read More About Pregnancy Tests
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Comments

hello yall I would like to know if I could be pregnant. I took a pregnancy test and it showed a pink line and a faint line then hrs later i looked at it again to show it to my fiance and the line appeared darker. Could I be pregnant?

Okey so... I had sex with my partner a lot last month everyday without protection, and now I have been having period cramps without an actuall period and it is also late, I have really sore boobs to but that's all, I took a test and it came up negative but later on when I looked it had a very faint second line?, can anyone help me?

Acheter doss asimom pas cher

I'm 21 and my periods come every month, even though slightly irregular if referring to cycle length. My last period was aug 19 and I skipped September. Having lower ab cramps (mild period like), nausea, light headed, frequent urination, and very bloated lately! Am I pregnant?

I have been having lower stomach pains lately. I have taken multiple pg test but they all either come oue neg or a false positive. Could it just be to early to tell or could it just be that it won't show up on a test yet. I need some help/answers

I just took a pregnancy test because my fiance and I had unprotected sex my whole fertile week and i have been having cramps in my lower stomach its not like period cramps though but I have an irregular period so its jard to judge buy that but when i took the test as it was loading i guess you could say at the T it showed a very faint thin line than as it kept going it disappeared leaving the dark line one at the C i don't know if it was to early to take it or what PLEASE HELP!

I am taking metformin for about 4 months for my PCOS, since i started using it my menstruation never get delayed for a week. I am 1 week delayed now and took pregnancy test this morning. The pregnancy test showed dark pink on control band and light pink on test band (not evaporation line) saw it after a couple of minutes after testing. Am i pregnant?

I am taking metformin for about 4 months for my PCOS, since i started using it my menstruation never get delayed for a week. I am 1 week delayed now and took pregnancy test this morning. The pregnancy test showed dark pink on control band and light pink on test band (not evaporation line) saw it after a couple of minutes after testing. Am i pregnant?

I was 7 days delayed. I took the Pregnancy test and It appeared negative. I kept the PT kit. when i checked it again in the afternoon,maybe more than 12 hours passed I saw a very faint and broken line. I am wondering if it's positive or not. The faint/broken line color is red not colorless.... What does it mean?

I took a pregnancy test late last night at like 10:30 looked at it for about 2 mins then had a bath my husband brought my son in to have a bath with me and when he did that it was about 5 mins that had gone by ... he handed me our son and looked at the test on the counter ,, I was just about to tell him it was negative when he turned and looked at me and said so what does this mean ,,, I said negative and he passed me the test .. I looked at it and there is a small faint line of pink beside a bright full blown pink line I then thought alright im for sure preggers ... I woke up this morning at 7 am and took another one and this one came out full blown negative what does this mean am I pregnant some advice would be very helpful .. I just had my son about 7 months ago any info would help thanks

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