"been taking this birth control for 8 months now since giving birth. pros are light periods that last 3-4 days, 5 tops and they always come on time. no pregnancy so that&#039;s good. cons.. (well, my only major con) is weight gain!!!! i am constantly gaining weight every month and it&#039;s scary. every time i step on the scale i&#039;ve gained another 2-3lbs. i don&#039;t even eat a lot &amp; have never gained weight this rapidly in my life. so far i&#039;ve gained 13lbs since starting this pill.. it&#039;s depressing &amp; i cry about it. also it is almost impossible to lose the weight other than practically starving yourself. contraceptive side of mononessa is good but the weight gain is no go!!!"