Pregnancy?

Okay this is probably super irrational but I can’t help to worry. My boyfriend and I had sex for the first time last week. We were both virgins before. At first, I didn’t really freak out but now I am.

I am on birth control and take it correctly. We also used condoms with spermicide and he pulled out.

But I still feel so worried and anxious that I might be pregnant and I don’t know why!

The way my birth control works is that I have a period once every three months. I won’t have my next period until September so that’s freaking me out.

I really need some reassurance or something, guys.

I know I probably sound really stupid, but I’m scared. I’m in college and so is my boyfriend and we’ve talked and neither of us want kids ever. I’m worried and anxious. I need reassurance please!!!