18 weeks 1 day pregnant. I feel like I'm huge and people say I'm huge for only being 18 weeks. I had…

18 weeks 1 day pregnant. I feel like I'm huge and people say I'm huge for only being 18 weeks. I had my 18 week check up today and I weigh 146.6 pounds and I've only gained 3 pounds since becoming pregnant. what do you guys think. also can you guess the gender. I find out the 28th