Im a 18 year old female, I was a virgin till 3 weeks ago. Me and my bf had oral sex a few days ago. I gave him a blowjob and he ejaculated in my mouth, which I swallowed. After that I washed my mouth and drank some water. We cuddled and kissed each other after, we had a make out. Then we went for round 2 and he performed cunnilingus on me. This happened after an hour of me going down on him. I'm worried because sperm can survive inside the mouth for some time, what if I had some leftover sperm in my mouth which transferred into his mouth because of the kissing and then into my vagina causing me to get pregnant. It was 8 days after my period and I was not on the pill and im worried, please help me out.