Am I being unreasonable?

Janice

So I'm getting a C-section Tuesday and told everyone that I don't want any visitors for the first few hours after my surgery and then only the grandparents until the next day. I said everyone can visit the day after my surgery but my FIL is being difficult. He's mad and throwing a fit that my husbands sister can't come up the first day to see the baby. My FIL favors his daughter and is very close to her. I feel it's unfair to say she can come up and not my siblings.