Still getting my period on the pill?

shananay

I started taking the pill about two/three weeks ago. My period was supposed to start a few days ago but I’ve been taking the pill anyway as I didn’t want to get it. I’ve been getting sore stomachs and bleeding anyway. Is that normal? I thought the pill completely stopped your period? The blood is kind of like what it’d be at the end of a cycle. Is this normal ?