Dear willow: I concur with Gail. It is difficult to know whether this bleeding is a result of unusual bleeding form the LEEP site (doubt this) or is an non-ovulatory bleed (more likely). The most common reason for a menstrual pattern like you have described is not having an ovulation every month. In a normal cycle, estrogen is produced all month. Estrogen is responsible for building up the lining of your uterus so you have something to shed each month. The good news is that you have enough estrogen to make a lining that does shed (as opposed to being in menopause).
In a normal cycle, progesterone production increases following ovulation and release of an egg.. Progesterone "stabilizes" the uterine lining in preparation for a possible implantation of a new pregnancy. If you are not pregnant that month the levels of estrogen and progesterone fall, triggering the release of the uterine lining—your period.
So, if you do not ovulate, the estrogen build up of the lining continues, but without the usual ovulation associated progesterone. Thus, the hormone levels don't decline, and the lining stays up inside the uterus—your missed period. Alternatively, the built up lining can begin to shed on its own creating erratic bleeding patterns which are usually "too-light" or super heavy and prolonged.
Causes for not ovulating are multifold: thyroid problems, pituitary problems, ovarian cysts, physical stressors (eg sudden increases in exercise, crash dieting, medical procedures), emotional stressors (problems with partners, boyfriends/girlfriends, finances), increased body weight, anorexia, rotating shifts at work, etc. Even moving through our 40's is linked to more frequent missed ovulations--as is being in perimenopause.
Your GYN should be able to quickly determine if the bleeding is from the uterus or from the LEEP site. If it is from the uterus a short course of hormones may be tried to get the bleeding to stop.
Yours,
Jane