Things that can reduce the effectiveness of the pill:
* missing pills - or taking them several hours later than usual
* starting your new package of pills a day late (apparently the most common way to get pregnant on the pill)
* some antibiotics, antifungals, HIV medications, or seizure medications
* taking St. Johns Wort herbal supplement
According to the Mayo Clinic, home pregnancy tests test a pregnancy-related hormone called human chorionic gonadotropin (HCG). This is not an ingredient in the pill, nor do the hormones in the pill affect the production of HCG.
Attention: NOTHING on this site may be reproduced in any fashion whatsoever without explicit consent (in writing) of the owner of said material, unless otherwise stated on the page where the content originated. Search engines are free to index and cache our content. Users who post their account names or personal information in their questions have no expectation of privacy beyond that point for anything they disclose. Questions are otherwise considered anonymous to the general public.