Hi doc I had unprotected sex with my gf after that she took a i pill and she got her periods after 15 days from her last periods and again we had sex but now she is not getting her periods its more then 7 days from her monthly date we take a home pregnency test and she is not pregnent ... can you tell me due to i pill how many days delay in the periods and is this dangerous to her.. we are tensed ...pls give us a solution..