So I'm 5w 6d and Spotting (contains TMI)

So I'm 5w 6d and I've been spotting since Friday. It started out as only being a little bit and it was either pink or brown. But Monday it started to be a little heavier and more Red and I'm having some slight cramping on the left side. I have my first appointment with my doctor over the phone tomorrow but I'm just worried because I've already had 3 miscarriages and I don't want to go into the ER espically if it's nothing. I just want to know if anyone else has experienced this and went on to have a healthy pregnancy.