When do I take a test? I hadSex aDay after my period end. N took the planB the next day at 8pm?

You HAVE to wait until your period is about a week late for a home pregnancy test to be accurate. If you take it any earlier, it may not be accurate. A pregnant woman releases a chemical called HCG (human chorionic gonadotropin) only pregnant women release this and this is the chemical a pregnancy test detects. If it is too early, there may not be enough of this chemical to detect yet. You HAVE to wait until your cycle is due and preferably a week late otherwise you are wasting your money on the test. You need to use the first void (pee) of the morning as it will be the most concentrated.

i think your safe about this cause I had the same problem and I took the plan B pill and I missed my period for a 1 cycle than I had it and I'm not pregnant nore do I have a kid so, but on the safe side take a test in 2 weeks :)