Hello, i'm getting pink bleeding after a week my period ended, i'm 29 years old, this has been going for like 4 data and I don't take birth control pills. My twin is having the same problem, we take similar pills and have neurofibromatosis. Can this be caused be the medications? This is the first time it happened and it can be caused by plenty of things but the fact we both have this is weird, btw I made sure it doesn't come from my urine or poop.