I had unprotected sex I am not sure that my partner ejaculated inside me or not. As per my knowledge, he didn't ejaculate inside me. Still, I took ipill within 1 hr. I didn't face any side effects till now even my withdrawal bleeding is not happening its day 11 I have my periods date on upcoming 18th march. What is the real case want to know? My last period date was from 18th Feb to 24th Feb. I had sex on 2nd, march.