How Late Can A False Negative Be

Unp.sex 7/3 12 days late then bled for 1 day, 4 false tests, can liquids like whiskey, wine, 4 energy drinks, and water give false negative tests in a dr office? My pee was so... View answer

lamictal) can effect hCG levels, causing me to have false negative blood and urine pregnancy tests when I, in face could actually be pregnant? I am also overweight , could this contribute to... View answer

lamictal) can effect hCG levels, causing me to have false negative blood and urine pregnancy tests when I, in face could actually be pregnant? I am also overweight , could this contribute to... View answer

Will b12 vitamins give me a false positive on a pregnancy test I took a first response test and it ... spotting and my period is 3 weeks late so I went to hospital and got a urine... View answer

Can I have a false negative HLA B27 test? My mother and uncle have AS. My mother's other brother has Reiters Syndrome. I tested negative for the gene last week. I was wondering how... View answer

Can adderall cause a false negative pregnancy test? I m 12 days late & have taken adderall as ... and all were negative. Could it be the adderall causing a... View answer

am now 7 days late. The weird thing is, I am having no symptoms for either pregnancy OR period. I have taken two HPT and both have come back negative. How common is a false... View answer

with a home pregnancy test. I was surprised to read that antihistamines can cause false negative results so am wondering if NyQuil would fall into this category of causing a false... View answer

pertaining to pregnancy. I am 4 days late with on and off light brown spotting. I took a preg test a day ... spend more money on a test I suspect would be neg, do you have any advice as... View answer

cycle was 05/27/14. I am now 4 days late and i took a home pregnancy test last night and it was negative ... possible i could still be pregnant even though the home pregnancy test was... View answer