His partner Lauren Silverman's due date is 28 February, which would mean workaholic Simon may have to miss out on celebrating the launch of the X Factor musical the day before.
Previously he's replied to questions on whether or not he'd be at the birth with the hilariously unreconstructed man comment: "Are you out of your mind? There are certain things you shouldn't see."
Watch the video above to find out what he's decided to do.
Do you think it's important for a father to be present when their baby is born? Let us know in the comments section below.
More from Parentdish