Hi, My wife is 31 years old and she had last menstruation over around 55 days back. And we had sex 50 days back (unprotected sex). Then approximately 68hrs later she took an Ipill. It s almost 55 days from last menstruation, and she is quite worried. She has done twice pregnancy test(using preg test kit) but it came negative. What could be possibility? And how to get her menstruation back to normal? thanks