Close to a month ago, my boyfriend and I had sex with a condom. When he finished, he pulled out but the condom stayed inside me. He didn't enter me again or anything and I pulled the condom out and whatever sperm was in there stayed in there. It freaked us both out so we agreed to take a pregnancy test a couple weeks later. My period has always been irregular so it hasn't helped any trying to find out if I'm actually pregnant or not. I took a test 3 weeks after the incident and it was negative. I know it is possible it's way too early to tell on a test. I haven't had my period this month which is normal but I did have one last month, the last week of June. I'm not on birth control. What are the odds that I am?