Formal dresses?

Maritza • Momma bear to two girls. | Az | Proud single momma.
I have my brother in laws wedding in 3 weeks. My daughter and her half sister will be in the wedding as flower girls. Anyways, does anybody know where I can find some cute dresses? I'll be 15 weeks during the wedding and I'm not showing a lot but the bump is there. I have this dress but I'm not sure if it's wedding appropriate. What do you guys think? ☺️