I always thought that side effects never happen to me but boy was I wrong with this pill! For the first 3 months that I started to take them I didn't think I gained any weight and I was fine. But recently (5 months later) I have gained weight dramatically!!!!!!! (easy 15 pounds) and I have always been in great shape, never gained more than 3 pounds. I have always been extremely tired everyday, and lately every weekend I feel so sick, I kept thinking I was coming down with the flu - I would sleep all day and still not feel any better. I know I'm not pregnant - I am so glad I finally decided to do my research on this pill - Stop taking it ladies, it's not worth it!!!!