Am I pregnant?

So a few weeks ago me and my boyfriend we’re doing things. I’m not even sure if you can get pregnant from it but while I gave him an hand job his cum dropped down onto my leg and my lace underwear. Lately I’ve been feeling tired, always wanting to eat, I get headaches,I’ve gained like 3 pounds and my bra went from an 34 A to an 34 B. I have not taken a pregnancy test yet. Please don’t call dumb or stupid if you have nothing nice to say don’t say it. I am also late for my period