Ok so because i have light pcos in one of my ovary and i’m considered underweight (my body is just made that way) my periods are super irregular and i always get scared i’m pregnant

Anyway since i was going to the bathroom more ofter to pee i started worrying about being pregnant and suddenly my boobs started to tingle/be tender, is it possible that i’m worrying so much i’m imagining my symptoms?

(I had sex a month ago but after a few minutes without using a condom he put it on and he didn’t finish anyway)