Implantation bleeding??

I am so confused! I have been spotting brown for a few days, today it's bright pink....I'm 6 days away from AF. Someone mentioned ovulation spotting but I already ovulated this month and we did the deed. I've never gotten AF early. I'm just really confused and could use some advice if anyone has ever had implantation bleeding or spotting and then got a BFP.....thank you! Also everywhere that I have read, implantation spotting is an early sign of pregnancy.