Plus Size Mommies

Ye
Hello mommies (: I am really concerned on my weight:( I started off at 219 and I am now 234 and I'm 18 weeks pregnant:( I try not to be so concerned on my weight but I've read that some mom's only gain 11 pound or 15 pounds most during there pregnancy... I've already gained 15 pounds and I'm berly on my 2nd trimester ...my husband tries to calm me down by saying it's also in my boobs (my boobs where huge before pregnancy so imagine them now lol) anyways Is this too much?? What can I do to not gain unnecessary weight:( I'm trying not to worry so much but it's hard not to worry about my health and my babies health aswell:(