My DF's two sisters are in our wedding as groomswomen and about two months ago we found out one of them is pregnant and will be about 7 months along at the wedding. When I 1st found out I was upset because we already had her dress and now we would need a new one , but we were able to exchange it for another size but I am still upset whenever anyone mentions it.
I guess I am just bothered that she might steal some of my thunder on the wedding day since it will be the 1st grandchild and all. It is already all his family can talk about and no one ever brings up the wedding unless it is to discuss how she is going to be feeling durring the flight and the wedding. His mom already worships his sister and so basically I am feeling a little jealous...am I a horrible person? 

