Weddings are special events in people’s lives because it’s a union of two people who love each other. It’s only natural to want this day to be the best one for the couple so that everything is perfect, right from the venue to the wedding dress.
The original poster (OP) also wanted the perfect dress for her wedding, which her stepmom was going to lend her. However, the bride got pregnant, so her mother-in-law, who was also pregnant during her wedding, agreed to give the bride her dress, but her sister-in-law lost it and even called her a sinner!
More info: Reddit