Baby shower fear

Terelan
My first baby shower is on August 8th.. I'm throwing it for my fiancé  side of the family because we live and go to college where he is from and I'm from Houston where my family is throwing my shower there in September . I have invited lots of people and no one has bought from the registry and it's making me scared that no one is going to show up😁. Is there anything I need to do to remind them ?