Freaking out

My period is 11 days late. I’m still a virgin but when I saw my boyfriend last I gave him a bj and he ate me out after, he said nothing was on his fingers. Idk if anything could’ve gotten on the top I was wearing when I was moving off of him and it got in/on that area...I went to the bathroom after all that and idk if when I wiped stuff got in me. I took a test when I was like 3 days late because I’m just paranoid and it was negative. I do have irregular periods. I have zero symptoms of my period coming at all. I don’t feel any different or anything...