I had an unprotective sex last april 7 and until (2 months) now i still don't have my period, I took pregnancy test last week of april and mid of may and it went out negative. today, 5/30/12 I went to my OB to check if I'm pregnant or not, she did an transvaginal ultrasound to determine what is wrong inside my body, we found out that i have polycystic ovary, she said it's the reason why until now i didn't get my period. she gave me medicine(duphaston, if im not mistaken) to take for 5 days and wait for 2 weeks until my period arrives, she also said that if not there is a possibility that i'm pregnant. I just got confused, is it possible for me to get pregnant when i had my unprotected sex last april 7 which is 2 months ago? what i mean is the sperm cell is still alive? if it is, where did it hides when my doctor did a transvaginal ultrasound? i know i sound silly but i just want a clarification, since i not having any contact starting today, the day we did the transvaginal ultrasound?how come i will become pregnant? .
appreciate your thoughts, thanks.