One week before my period. Experienced a pinlish discharge yesterday when I wiped but only once. The next day it happened agai. But this time a brown discharge and a couple hours later a redish discharhe and then it stoppes haven't had colored discharge since. Could it be implantation currently have the IUD.and have regular periods

Anytime you are concerned about your bodys health, see your doctor.

I do believe what you are concerned about is nothing to worry about. It sounds like 'Old blood' meaning endometrial tissue left over from either your previous period (did not flush all the way) or it is tissue that formed early, or this is a late period. Many women experience this (myself included)

But it is always good to check with your doctor or gyno. As this could be a sign of an STD or other serious problem.

Thank you very much