I have been on Femcon since February. My doctor switched my pills from Loestrin to try and get a handle on my heavy bleeding during my cycles. I think that's finally under control, but I have gained about 8-10 pounds! I work out and eat sensibly so it didn't make sense why the scale was steadily climbing upward. I know that a lot of birth control pills mention weight gain as a common side effect, but after taking several different brands over the last 20 years, I have never experienced weight gain until now. My appetite has increased and I seem to never feel satisfied after eating. That has to end. It's mostly in my stomach and I just feel bloated! So needless to say, I am switching back to Loestrin as soon as this pack is over and hope for the best. Other side effects included nausea, but that happens the first couple of weeks with me with almost every brand of birth control.