Period Issues

Patient: I had a cyst on my left ovary early last year, and cyst, ovary, and F TUBE were all removed. after started taking try-sprintec. since then, my periods do not start until the 5th white pill on week four, and have been going into the new pack of color pills. what is going on, should i be worried? have no insurance, so trying not to go to OBGYN.