Am I over thinking?

I’m on the pill and have never missed a day taking it, however I had sex last week and let him cum in me and ever since I’ve just been paranoid I could be pregnant. I have a few of the pregnancy symptoms (such as bloating, being more gassy and sore boobs but idk if that could be related to other things)

I looked up online and it said pregnancy tests are more accurate when you take them on the day you expect your period but my period isn’t expected for ages and I don’t wanna wait that long to find out if I currently have a baby growing in me (don’t rlly want a bump forming as I’m going on holiday soon), so does anyone think there is a chance I could be pregnant?