Hi Doc, I had sex with my boyfriend for the first time, and he didn't release sperm in me and did not use condom, after 2 day and on the 24 th june I experienced pain in my stomach and later on I saw blood on my underwear on day1 and Day2 & it stoped and my regular menstral period suppose to be on the 27th of june 2011 so up to now there is no sign. I will like to know if there is a problem?