I've been bleeding for 11 days stopped 2 days ago and now it came back?

Hello so I've never had this type of bleeding before an it's just weird. My periods only last 5 days I did not have one in September or October and then it started November 11 for like 11 days and then it stopped and then came back again today. I never got checked for pregnancy in September or October and yes I'm sexually active. I called a ob gyn since I couldn't get in for any appointments and she said either I'm pregnant or i miscarried and didn't know but I want to get checked on Monday like asap cause this isn't normal for me. Anyone been through the same thing?