I won’t eat anything sweet.

I’m 33 weeks pregnant and have not had one sweet or anything unhealthy... This is me and my hubbys my 2nd pregnancy and I’m 1 year PP. I already gained almost 50 lbs.... I gained 55 with our daughter. My husband gets upset because I’m so hard on myself , he just wants us to have an ice cream night and for me to just relax, but I can’t. I’m so worried I won’t get the weight off afterwards. I eat great for the baby. But I’m terrified to do any extra eating. What do I do ladies?