Family is upset...

So I announced that we would keep everyone updated on our baby when she decides to come (I'm 38 weeks) but we have asked to have no visitors while we are at the hospital. We would like that time to our selves & so I can learn on breastfeeding & not get frustrated. My sister freaked out! Started calling me names & everything. Told me that she don't care what I say she WILL be there. It's just frustrating because she's at my moms everyday which is where I'm living currently while we look for a house. So she would actually be one of the firsts to see her once I get home. This is my second child, it makes me mad no one can respect my wishes. & is calling myself & my boyfriend names...anyone have this problem?