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Okay, so AF is due this Sun. I am having on and off AF type cramping as of Thurs. night.
Well...I HAD to test so Mon. night around 2 a.m. I tested after about 4 hrs. of sleep. It was negative. I get home last night and look at it again and it's a faint positive now. This was with an EPT.
So again last night around 2 a.m. once again I test this time w/ a Answer Quick and Simple and BFN.
I am wondering if each test tests different levels of HCG. For example...maybe EPT tests for a lower level than Answer Q&S.
What do you guys think??
Should I just forget the faint positve since it showed up a couple hrs. after testing??
Hi Lynn Your're right - home pregnancy tests each have a different level of sensitivity as far as the hcg level that it can detect. The smallest amount that some can detect is 25 mlU, up to 100mlU depending on the brand. The following chart lists each of their levels: http://www.fertilityplus.org/faq/hpt.html
Almost all pregnancy tests say that any result read after a certain time period is invalid, so unfortunately if a faint positive shows up after two hours it could just be an evaporation line and not necessarily a real positive. Best thing to do is test first thing in the morning, because then the hcg level has a chance to build up and is the most concentrated with first morning urine.
Good thing is that given what you've said, it's impossible to rule out a BFP - so i'd test again this weekend Good luck and keep us posted!