Does this happen to you?

I’m too young to have a baby. I know that. I don’t even really like babies, and I know for a fact I couldn’t be a mother. I’m on bc and all that, and I never purposely try to get pregnant or something, but like, I don’t know.. sometimes I think I’m pregnant ? Like there’s obviously a possibility, and I don’t ever panic about it or anything. But then I find out I’m not, and it’s great, obviously, but I’m always a little sad. I don’t know why, because like I said, I’d never try to purposely get pregnant right now. No way. Why would I feel like that? It’s the weirdest thing