What would you do?

My husband and I have a 15 month old child. We’ve always wanted our kids close in age. But, I feel like if we do I’m just going to gain more weight on top of the weight I haven’t lost from my first pregnancy. I’m just so scared of the judgements. My mom and her Fiancé like to make remarks and comments about me being chubby and such. I feel like my self confidence is so low. I’m not sure if I should just say screw it and do it, or attempt to lose weight again like I’ve been doing off and on my whole life.