Unexpected Cycle

Patient: I had a period Feb 28-Mar 4th…I thought was ok. I am fourty one with one child. I went to see my boyfriend for spring brk..and I started bleeding again for 2-3 daysMar 10 through Mar 13th.. I didn’t know what was wrong. I took a thyroid support pill. Intercourse was not a problem on Mar 13th used contraceptive foam. Why would I be bleeding 2weeks after my menstrual cycle?