Might be a dumb question

Can you have a period and be pregnant ? I’m on the pill and take it consistently. I got my period the day expected and it was bright red blood and pretty normal. Then it’s was normal for 3 days then completely stopped really no blood. My period was suppose to end Monday as I start my hormonal pills. I’ve been having pink/yellow discharge. Could this be pregnancy ? I’m super paranoid and just want reassurance!