Any Dads to be gaining weight?

Nickd25

I'm a first time father to be and I couldn't be more excited. However one thing I'm not overly excited about is the amount of weight I've put on. We are at the halfway point next week and I have gained more weight than my fianc. Last month I was adding a pound a week. I did read that it is common for us guys to add some weight during the pregnancy, but 15 lbs in 4.5 months??? Just wondering if any other Dads to be are experiencing this?