I was wondering if there is one birth control or another that keeps u from putting in weight? or can u take something with them to stop the weight ?

This is a myth: The modern low dose birth control pill has no measureable direct effect on your weight, as demonstrated by many studies. However, be aware that it can slightly enhance your appetite or can make you more susceptible to depression, either of which can lead to weight gain. No particular pill is preferred, though you should always aim for the lowest dose pill that is effective.