So, I'm looking for a dress to wear to my brother's winter January wedding that's coming up. I'll be 7 months preggers by then and need a dress. I've been looking online and in the stores and here's two that I'm deciding between, I need your help! I can't decide, what do you think?

Black One Shoulder Dress w/ Broach

Navy Blue w/ Black & Crystal Accents
Both are pretty, but I can't decide.
Hubby says go with the blue one!
My Mom says she likes the black one!
What are your votes?