Can you get a period and still be pregnant

I had a period 5 days ago. The first day was painful and I bled pretty good then the rest of the days, it was light. It would stop and for most of the day then come back. It lasted about 4 or 5 days. I have this really strong sock feeling in my stomach to the point where I feel like I'm going to throw up. I took pepto to help. My mom said I could still be pregnant because she bled every month with my sister when she was pregnant. What do you ladies think?

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