Advice!! Blood 3 days before AF?

I'm on CD 24 and I just noticed some bleeding start. It's pink, but it's more than spotting so from what I understand it's probably not implantation bleeding right? But it's not period bleeding either. It's definitely not that crimson tide I've come to resent each month. Firstly, it's a few days too early and my periods are not irregular. And secondly, it's for sure not coming with all the other stuff my periods come with (cramps, bloating, and an intense need for chocolate), nothing more than just some pink blood. So weird! I sometimes spot a day or two before my period but I've never seen this much and my period isn't due until the 14th. Has this ever happened to anyone? When I see my doctor, should I mention it?