Worried TMI

So about a week-ish ago, my boyfriend and I were messing around and doing 69. I was on his face and he finally came, but he came on my mid thigh. I don’t know how far away it was for my vagina and I don’t know if any shot onto his chest or my vagina, but I’m really anxious about being pregnant. I know it sounds stupid, because I didn’t have any sex. But this happened on Sunday, and it’s Thursday and I’m starting to feel aching in my lower abdomen right above my vagina. I looked up any signs or reasons why it would be aching, and it said in the early weeks of pregnancy can start to ache from the egg being fertilized. I’m super anxious about it. Any closure??