A friend of mine is not having her period from the last 50 days. She is an adult and had an intercourse with her partner on the 17th of April which was likely to be her 26-28 day of period. She took an I pill immediately after that an hour after the intercourse and had her periods on the same day. She hasn't had her periods from then and now today i.e the 9th of june she has vomited twice. She is bit concerned and would like some advice. She is an adult as well as her partner but they are unmarried. We are bit unsure what we need to do. Urgent advice would be really helpful.