Could this be implantation bleeding

So I just got up to go to the bathroom and when I wiped there was 3 small light pink drops of blood af is not due til Jan 9, 2017 I've never experienced implantation bleeding before so I don't know. If you ladied could help me that would be great an if it is when can I go to the doctor to do a pregnancy test. I've always had bad luck with the at home pregnancy test they would tell me I'm not but would go to the doctors and I would be. I also have PCOS so I don't know when I ovulated.