Worried - First Pregnancy

Erica🌈👶🏻
I am 7.5 weeks now and all of sudden yesterday I started spotting brown discharge. It was light yesterday and today it's moderate. Everything I read makes me more nervous. Should I go to the ER or try to get an appointment with my OBGYN? My first appointment isn't until Wednesday. I am not sure if I should wait or try to see a doctor sooner. Any advice anyone could give me would be greatly appreciated. 😕