I'm almost 6 weeks post op. Ive had my period twice (lasting longer than 3 days) and had break-through bleeding twice (super heavy but only lasts a short time, a few hours maybe). I'm on the patch, have been since 2 weeks post-op. What is up with my uterus? I've been on birth control before and was always super regular. Is it all the estrogen my fat cells are dumping or something? Has anyone else had this issue?