I'm hosting a baby shower for my sister in law at our home in May. We were both really excited about it, it was going to be simple maybe 20-30 people with games and a bagel bar. Last night she texted me saying her husband's friends might want to celebrate too and wants to have a separate bbq at a separate time (after the already planned shower) on the same day at my house! At first I thought it was okay, but now I'm starting to think this is ridiculous and I don't think I can handle that much complexity for one day. I suggested we do a combined co ed baby shower so everyone could be included, but she doesn't seem to be into this idea. How do I tell her that I'm not comfortable with having her husband's friends over till who knows what hour at my house?