Halloween costumes for pregnant women


I need help deciding what we are going to be for Halloween . I'll be 6 1/2 months pregnant on Halloween so it's my husband and I, 2 toddler girls one 8 month old baby boy. My 2 teen daughters decided to be Spider-Man & Venom so they do not want to participate. But any suggestions would be appreciated. We already did Cat in the Hat with Thing 1 and Thing 2 before we had my baby . But I need help with their group theme.