I Just Had Sex For The First Time. We Did

I just had sex for the first time. We did not use a condom and did not have anyway to get birth control. My boyfriend said he did not ejaculate but I read online about "pre ejaculation". He does not have any STDs nor do I. I am just scared I might get pregnant from the "pre ejaculation". ****Reminder he said he did not cum**** I just got off my period yesterday, we had sex today. I have masturbated before. When we had sex it kind of hurt a little bit, but it felt fine afterwards. My vagina feels interesting, it might be a little swollen from earlier but yea. I am just praying I'm not pregnant. Can you PLEASE help me. Do you know if anything is wrong with me!! Or do you have any suggestions for me?