I was fooling around with a guy yesterday and he slid his dick in my vagina without a condom on. As soon as I realised I made him stop so I could get a condom. Then this morning we were fooling around and the condom came off. When he came both times he was wearing the condom, and obviously now I'm going to get checked for STIs, but should I take the morning after pill? I'm not sure how likely it is that I could get pregnant from pre-cum. But I am in my fertile window which is making me really paranoid. Please help!