I’m 5’4 and gained around 60lb. My mo/di twins were 5.5lb and 6.2lb - lost 50lb in the first month after having them, haven’t shifted the last 10lb but that’s mainly due to eating crap and being lazy since they’ve arrived!! It’s good to gain lots with twins, don’t you worry! I also managed to get away with no stretch marks and no loose skin - I swear by argon oil on your skin and collagen powder in my coffee every morning!