We asked my fiance's sister to be in the wedding party. She is currently pregnant with her first child and due at the end of May. The wedding is early Sept. of this year. She is wanting to not be in the wedding due to her not wanting to order a dress with the rest of the bridesmaids. The order has to be placed now so the dresses will be in on time and altered if needed. She won't even consider ordering it now based on ordering it a little bigger so it can be altered. I strongly feel that she should be in the wedding. Most dresses need to be altered anyway so I don't see the big problem. There are plenty of women who have been in similar situations and made it work. It really bothers that she is refusing to even consider this. It's her brother's wedding. Am I overracting to her not wanting to be in the wedding?