Please be real: is it really possible to have your periods when you're pregnant or not?

Anonymous
We've heard both ways. Most people say no but we've heard some people say yes it is possible on the other hand. Which one is the real? My friend needs to know and she hasn't gone to her doctor because she's unsure and she's afraid to go and get that outcome where something happens.
Updates
+1 y
I should've added that my friend doesn't use this site so I'm asking for her.
Please be real: is it really possible to have your periods when you're pregnant or not?
11 Opinion