Me and my boyfriend had sex on 18th march, that too just one round. I had irregular menses due to pcod, so my period date was around 12-13 march, but i didnt get it. The condom was intact, it didn't break or slipped. He ejaculated inside the condom. After that also, I didn't get my periods. I took 2 pregnancy test in may-june and it came negative. I got my bleeding after my doctor gave me the medicine in August. Is there still a chance that I am pregnant?