Left unplanned, a shower drifts: people mill about, the games start late, the food goes cold while someone is still explaining a rule. A baby shower is a fully supported event type on My Joyfullday, which means you can give it the structure any other occasion gets โ a page with a schedule, venue, directions, and replies, all in one link.
Write the afternoon as blocks. Doors open at two, games begin once everyone has tea, the meal is served at four. Guests read the shape before they arrive, so the day starts when you say it will, and the quiet ones know when it is polite to slip out.