Women with PCOS often have irregular bleeding. This is because the lining of the uterus never matures because there s not normal ovulation to produce progesterone. In other words the first part of the normal menstrual cycle makes estrogen which thickens the lining of the womb but after ovulation progesterone causes maturation and then the normal lining sheds. PCOS and irregular bleeding has nothing to do with your history of leep almost 10 years ago. You are bleeding irregularly because the lining never matures. It just grows and grows and sheds. Sometimes it s neglected it can even become premalignant or malignant because there s so much stimulation to grow without maturation. so I would recommend the following. You need to see a gynecologist and have an endometrial sampling done to make sure there are no premalignant or malignant changes. You need a course of progesterone that will mature the lining of the uterus and cause it to shed. Normally this will stabilize the irregular bleeding and that would be followed by a more normal or even heavy menses. There are progesterone pills progestin implants progestin shots and a progestin coated IUD all of which are used to prevent malignancy in PCOS patients. because you are interested in becoming pregnant after progesterone maturation you may wish to consider a mild antiestrogen such as Clomid. This should be done by infertility specialist you can keep an eye on things. Peace COS patients are often the easiest on infertility patients to treat. The reproductive endocrinologist or infertility specialist will most likely also check your thyroid and prolactin levels as these are two other conditions which can contribute to irregular cycles. Good luck I hope this explains things and I hope that you conceive soon.