Help pls opinions

Okay long story short me and my bf like two or three days ago decided to take a shower togheter, but things escalated quickly and he started to finger me. So basically he was fingering me and he has a bath tub shower so I stood up on the sides of the bathtub so I was higher up since he’s way taller than me. So will he was fingering me I was giving him a hand job and he came really fast, he’s fingers were still in my vagina when he came. But I guess what I’m trynna say is that we are both kinda concerned that some sperm may have entered my vagina. He’s mostly the one concerned but I told him that if his fingers were in my vagina and his hand was covering my vagina there’s no way sperm could’ve gone into my vagina. Also I washed my hands with soap right away after that ( and I don’t really remember if I touched down there, but I’m sure I washed my hands) pls help me fix my concerns and my boyfriends concerns. And my stomaCh hurts like period cramps and I just finished my period