Good day, my boyfriend and I had unprotected sex last feb 26 and he ejaculated inside me. I'm fertile that time. I immediately take nordette the next morning and after 5 days I got withrawal bleeding that lasted I think 3-4 days. I red that the withrawal bleeding will be your menstruation, but today is march 3 and I still don't have my next period, I'm 3 days delayed already, is it because I'm pregnant? Please please answer me I'm already paranoid :(