<s>[INST] My boyfriend and I had sex tonight. It was the first time for both of us and while it was happening, the condom kept slipping off and getting stuck half way in my vagina. It scared me at first and he assured me that it was going to be okay. So it slipped off quite a few times and we re-adjusted it every time it came off. He did not ejaculate in me because he wanted to make sure none of it would get in me. But I m afraid some of the pre-cum may have gotten inside me. And I m expecting my period within the next few days. Is there a chance I could be pregnant? Also, could I get pregnant from us rubbing our genitals on each others? [/INST] Hi, I understand your concern.  Rubbing genitals externally can not cause pregnancy. Pregnancy is possible only when spam enters vagina. Even pre-cum has sufficient number of spams to impregnate a woman.  So though less, but there is chance of conception due to pre-cum/ some semen escaping in vagina while you tried to adjust it.  Even psychological stress can delay a normal period Blood Chat Doctor testing can be the earliest diagnostic aid.  Please remember to use proper contraceptive before having sex hence forth.  Thanks. </s>