Like any other fete, there should be ample food at a couples cocktail party and of course, a signature drink to wash the nibbles down.
Ask the bartender to concoct a beverage that reflects both the baby and the parents-to-be. If the nursery is in shades of pink and the father-to-be is a fan of Stoli, perhaps a renamed vodka cran fits the bill. Or if the soon-to-be mama used to sip on champagne and orange juice, go for a "mom"osa. And, of course make sure there's a delicious mocktail version for the expectant guest of honor.
For more edible ideas,
Set up a table of prepared eats so guests can serve themselves and you can enjoy the soirée, too. Italian food is always a nice option since Caprese salad on skewers, spicy meatballs, focaccia squares, stuffed mushrooms, and cozzi are all crowd pleasers.