My two youngest sisters (19 and 17 at the time of the wedding) live with my mother who I haven't spoken to in 5 years. My other sister, age 26 at wedding will be my MOH. We're trying to keep the wedding party to about 4 or 5 bridesmaids and my mother from knowing anything about my wedding. I'm feeling pressured to have my two youngest sisters as bridesmaids because they're family. But I want my mother to know as little as possible until the big day is over. However, I'm also worried that they won't be able to monetarily contribute to the shower or bachelorette party and I don't want the cost to fall primarily on my sister, the MOH. Any suggestions? So far, this is the only thing I'm stressing about (I know, it's still early!)