So, me and my husband had unprotected sex ( less than a minute) on the 26th of July and he didn t ejaculate inside me. Then again on the 30th we had unprotected sex ( the whole time) and he didn t ejaculate inside me. On the 2nd ( within 72 hours) I took the plan-b pill and got my period on the expected date which was July 4th. The period was normal, 5-days long period, that started out heavy and got lighter. But, now as I am waiting for my second period, I do not have any pms symptoms. I am six days late now ( period due Aug 3rd). Could this be the plan-b side effect or are there possibilities that one can still get pregnant after she had her menstruation. I am confused because I thought the menstruation means I am on the clear zone and everything is flushed out of my system. Could anyone knowledgable please shed some light on this and help me out? I do not want to be stressing out for no reason and get my period delayed even more. Thank you so much!