Two of my bridesmaids are currently pregnant. However, neither will be when our wedding comes around. One bridesmaid (also my best friend) is insisting that she bring her will-be-nearly-three-months-old baby to the ceremony/reception because she is breastfeeding; however this is an adults-only reception (aside from my fiance's 5 children who will all be in the wedding party, which he is also making extensive plans to have them picked up after dinner) and she knows this. While I'm sympathetic to her plight, how in the world to I tell her, nicely, that I can't give her special treatment when she's already assumed she can bring the baby?