Maternity formal dress

Wore this once as a bridesmaid, but *needs to be cleaned* -- spilled something (water?) and frosting (bc preggo!), see last two pics. This is a size 12, but would probably fit a street 8/10. This was not originally a maternity dress (found out I was pregnant 3 days after buying the dress 🙉), so purchased extra fabric and had panels added to the back. I was 9 months pregnant and in a 8/10 street maternity size at the time. Color is a very vibrant pretty purple.