I need advice ASAP!!

Hello my fellow eve ladies.

I wanted to ask before I went to the doctor, as it is Sunday and I don’t want to go the the ER and sit there for hours, but I’ve already had my period. It was completely normal, 4 days as usual and it’s always fairly light, so nothing abnormal at all. It ended last Monday the 22nd. Everything has been normal this week. But yesterday, I woke up and felt a little sick. As the day progress, I started to bleed a little. I thought it was nothing as it was light. I figure maybe I had cut myself shaving or something. So I cleaned up and continue about my day. As the night progressed. I was at work. I work as a host at a popular restaurant and we were really busy. When I got there, I went to go pee again, this is when I noticed the bleeding was heavier. I started to go every hour to Check and it was getting heavier and heavier. I then started to feel pressure in my lower half, it felt as if I was having a miscarriage. I had one before when I was 19 so I kind of knew what to expect. But I don’t believe it was one since I had a period. I am still currently having the bleeding, I woke up this morning and I was actually clotting a bit then it when back to blood. I still have pressure in my lower half and I’m have severe back pains as well. All my symptoms correlate with a miscarriage, but I don’t believe it is. Is anyone able to help? I don’t want to waste the day in the ER. But if I need to I will go. Can anyone give me any advice?