help? stressed

before anyone asks i’m 19 going on 20 and i’ve never had sex before, my parents were strict so i never did anything sneaky but ever since i left for college i’ve been engaging in oral sex strictly with my boyfriend bc im still naive and didn’t have much sex ed. i’m not on any form of birth control because i’m not having vaginal sex. anyways, my boyfriend and i were having oral sex and i went down on him and made him ejaculate, some got on my hand but it was mixed with saliva as well. i didn’t wash my hand but i rubbed it off on my sheets. during the time when i was down on him he started jacking his penis. we waited for a little while and then we started 69ing, we kissed after i made him cum btw, he ate me out and was fingering me deeply with the same hand and he was sticking his tongue inside me. i was in my fertile window (ovulating) and after i felt kind of nauseous and sleepy and started peeing a lot but i feel fine now, no sore breasts, no fatigue, etc. but i am making frequent trips to the restroom 💩 my period is supposed to start in like 10 days, should i be worried? i’ve never been stressed or paranoid before but do you think this could make me pregnant? or is intercourse and him actually dumping his semen in me will be the only way.