Hi Mikayla... Now I know that you said "Girls Only", and yes, I am a man, but I am a registered nurse, and have worked in high risk OB as well as neonatal ICU.
Now, to begin with, there are no dumb questions, so you give yourself a big pat on the back for asking this question.
The answer to your question is no, a woman does not continue having periods when she is pregnant. Some women do have vaginal bleeding during pregnancy. Some even report intermittent bleeding that seems like a regular period to them. But vaginal bleeding during pregnancy is not the same thing as menstruation.
I hope that this eases your mind.
The very best to you, Mikayla!... Chuck