Is Aunt Flo coming?

I’m now 8 days late, have been ttc for my rainbow, I found out I was pregnant with my angel after I was 2 weeks late (6 coming on to 7 weeks) i was going to do a test next weeks I’d be 6 weeks if I am. When I wiped I noticed some pink discharge/blood. Not sure if it’s Aunt Flo coming or implantation bleeding? I never had implantation bleeding in my last pregnancy