I'm sure there's always the chance of gaining 5lbs or retaining water but there are also a million ways to counteract it. It's like as soon as that's a possible side effect they take it as an opportunity. I have never gained a pound. Sure, some made me cry and some made me want to kill myself but I still maintained my weight. Crazy how that works? I was talke  3344  d out of an IUD for a few reasons but they sound fantastic. Hang on to your lovely shitlady girlfriend and go forth and bang without consequence.