I’m on birth control, but do you still get your period if you’re pregnant?

I’ve heard mixed answers, like yes, you have a “fake” period because of the pills. Or no, you’ll miss a period even if you’re taking the pills.

I’m on my period pills now, but it’s a really light period? I just need some advice lol.

Edit: I’ve been on birth control for several years and I know what my normal cycle feels like, and my period usually isn’t this light... Thanks!