I feel like I shouldn't have baby

Today I'm feeling really down about myself. I weigh 280lbs and we are on our 3rd cycle. I feel like maybe I should lose weight first. It's taken 4 years for my husband to be ready for a baby and I don't want to wait any longer but I keep reading horror stories of women my size having issues during pregnancy and health care professionals making them feel bad. Unfortunately I don't lose weight easily and I just can't find any motivation to exercise. I know a baby should be the motivation but in all honesty it's not. I don't know whether to put a hold on ttc or to keep trying whilst trying to lose weight. Usually my weight doesn't bother me I've always been big and I'm pretty happy in myself most of the time. But since reading a lot of negative stuff about being obese and pregnant I feel gross and sad 😭