all of the combination oral contraceptives can cause weight gain. the estrogen in them promotes water retention. but the weight gain from birth control pills is usually transient and goes away with continued use. the amount of weight gain may be decreased with lower-dose versions and with the progestins that are less like testosterone. those that contain desogestrel norgestimate or drospirenone tend not to stimulate the appetite so much. talk to your doctor about which birth control pill is the best one for you. one might gain weight while being on contraceptives but it cannot be held as a fact that the reason of the weight gain are the contraceptives. to demonstrate that the only reason women tend to get bigger while on contraceptives is by being part of an experiment monitoring every eating habits sleep schedule and activity. otherwise all accusations of weight gain being correlated to birth control pills are false. <link>
what oral contraceptives are likely to cause less weight gain?