About 2 years ago I donated my eggs to my sister so that she could have a child. It went very well and she was able to create 19 viable embryos! After my fiance and I had already selected and announced our wedding date, put down deposits, and selected our wedding party, she moved forward with impregnating a surrogate. Before she did this she let me know that the baby would be due around the same time as my wedding. Now the surrogate is pregnant and due the day before the wedding. More than likely (because this is through IVF), the baby will be early and she will have a 2 week old baby the day of my wedding. She doesn't want to drop out as a bridesmaid and is insisting that she can bring the baby to the wedding and my mother can leave with the baby early during the reception. Having the father watch the baby doesn't seem to be an option, but I want my mother to be there and able to be a part of things. Do I draw the line with my sister or do I let them decide and just deal?