Had a 9 day period, usual is 7. bled sgain 5 days later, which lasted for 3 days and was mostly brown w some pink on the second day. ideas?

Get checked : It is common to have an occasional irregular cycle. You described having usually regular cycles with a recent abnormal cycle. The description suggests either hormonal changes or commonly cervical or uterine polyps. It can also reflect an infection or abnormal cervix that would be found on a pap smear. All of these can be easily checked at the doctors office.