@as8422 birth control does not directly affect weight gain. Estrogen can cause water retention in the first few months (called the “adjustment period,” 3-6 months usually), and hormonal birth control is also known to increase appetite. If the user is not watching what they eat and how much they eat, of course they can gain weight. It is up the the user to notice the change in appetite and to control it. I think OP is totally fine, 5 lbs is hardly anything. Plus, weight fluctuates around +/- 5 lbs a day.