I had unprotected sex with my boyfriend on the 14th of april and had an Ipill the same day. My period date used to be 5th of every month. After having the I pill, I had withdrawal bleeding on 20th april, and today is 18th april, I haven't had my periods yet. My breasts are sore, painful and swollen. I took 2 pregnancy tests but they were both negative. I agree that my menstrual cycle has been changed but I just want to confirm that is it possible that I could be pregnant? I'm losing my cool. There is no sign pf periods. I'm gaining weight and my breasts hurt so much. Are these symptoms of pregnancy? What should I do? Please help please please.