Breasting can cause weight gain?

JA`s Mommy👶💙
So i just came back from my dr appointment and explain my situation that i have been dieting, excersing and breasting to lose weight but instead of losing weight ive been gaining? He explained that maybe in my case, instead of losing weight like you normally would will breasting im gaining weight b/c something about retaining nutritents? Have you guys ever heard something like this?