So my boyfriend and I were having sex two weeks ago and we used a condom. He finished and we were in a romantic mood, so he stayed inside of me for a moment while we gazed into each other's eyes. Anyways. He had mentioned that I was tightening up, which I felt as well, but I couldn't stop it. He pulled out and the condom was gone. We looked for it for a bit and I checked to see if it was inside of me, but no luck. We assumed it had gotten lost in the sheets and called it a night and decided to look for it in the morning. Morning came and no luck. I went to take a shower and my lower abdomen was really sore. So I checked my vagina again and I went in deeper to discover that the condom was wedged behind my cervix. I pulled it out and there was a lot of cum missing from the condom and it was still in liquid form. I am not on any sort of birth control method for medical reasons. What are the chances that I could be pregnant from all of that?