If you decide to invite both men and women, make sure the baby shower invitation wording makes it clear that everyone is invited. Timing: A baby shower is typically held 6-8 weeks before the babyâs due date. Choose the date of the event with the mommy-to-be to make sure the date of the shower works for her and does not conflict with any of her doctor appointments. Also, be sure to send out the baby shower invites far enough in advance (4-6 weeks out) so that everyone can plan to attend. Invitation Design: If you have a theme for the shower, like rubber duckies or monkeys, you can often find cute invitations that match the theme.