Paranoid or nah ?

So me and my boyfriend were messing around at his house and we didnt actually have sex but his penis was right on the outside of my vagina but I had undwear on and he said he didnt have precum but I dont know. After that I gave him a hand job and he cummed all over my stomach and some got near my underwear. This happened on the week before I was supposed to get my period and I haven't got it since, its been 3 weeks. Maybe I'm a bit paranoid because it can be stress but I dont know 😬

Any thoughts ?