I think you need to have several dates in mind and play it by ear. I once heard rosh hashanah is really the time of everyone’s birthday, that we all theoretically turn one year older at that time. Doing it before her real birthday sounds like a good option. After, not so good. The party will be bittersweet for her, as she’ll have spent time thinking that on an important birthday she was forgotten. There really is no way you can plan this solidly, as the due date is two weeks before her birthday, and a woman can give birth between two weeks before to two weeks after her due date.I vote for “labor” day weekend. You can even joke how she’s giving birth to a new year (I know; corny).
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