pill period issues(?)

Al
So I've been on the pill for 7 months now and for the past two period cycles, I've been getting my period earlier (during my last 2 active pills) then goes to inactive pills. I don't really know if this is normal or something? I've heard that people still get their period even when they're pregnant and Idk if this is that? Hopefully someone can enlighten me with their opinion ☺