Weight Loss is very important for women. Especially after marriage and baby birth, womens get increased weight. So, lets know how birth control helps. There are a number of factors that make losing weight with PCOS really difficult. Difficulties with insulin Slower metabolic rate Disordered appetite control. I also take spiro and birth control to help my pcos, but since starting this diet and. A teen does not have to be sexually active to take birth control pills.). But losing even a little weight can help reduce some PCOS symptoms. Talk to your childs.