Getting in shape while trying to get pregnant

I have a 18 month old and am really uncomfortable with my body... I want to lose weight and feel good about myself but my husband and I are trying for baby number 2.. would it be pointless to start working out and losing weight if we are trying to get pregnant? I’ll be fat all over again but if it takes us a while to get pregnant then I don’t wanna just be uncomfortable with my body all summer... help!!’