TMI BELOW! Anybody want to help?

So I've missed a few periods. Started spotting on Thursday. I assumed aunt flow was coming because it's so late but I literally don't haven't bled a lot. It's been mostly brown. Some pink and a little red but that was only when I actually wiped. It was only red once and went back to brown. So I'm just confused. My periods are always super heavy so this is all new to me