Need help finding baptism dress

Hi all!

I’m in search of a conservative baptism dress. I weigh 217, 5 ft 8, trying to drop 10 before the event in less than 2 months. The dress I wanted to wear won’t work at all... so tight around my stomach!

My local dress barn store closed down and we don’t have any curvy girl shops nearby. Amazon tends to cater towards flat tummy women. I have quite the kangaroo pouch and I’m not ashamed, but it looks super weird (and it’s been pointed out a good dozen times). My shape is very hour glass. Small chest... did get a little bigger after birth with decent shoulders, smaller waist (except for tummy) and huge hips/butt!! Like bigger butt than Kim K.

My culture is conservative - orthodox. So we don’t emphasize the big booty like other cultures do. Fit and flare used to work but not are so tight around my stomach and huge in the boobs.

Any recommendations? Im so frustrated!