Snapping over Little stuff

Man yesterday I was extremely mad cuz my kids father was sitting behind a car while our left lane was clear enough for us to get over and keep going. and I didn't know he was wanting to get on the highway and when he told me why he was sitting behind that motionless car vs us getting in another lane he wanted so he could get in the highway and I didn't want to get on the highway to get home cuz we never do, so that just had me all in a RAGE, like ready to put him out cuz he wouldn't shut the fuck up talking to me. I hope I'm not prego.The way I was so mad it scared me. So I have him going to get me a pregnancy test.