Well, depending on the gender of the royal baby, of course.
But either way, Prince Will decided to spend his 31st birthday as a doting husband! All he asked for was alone time with his lovely Kate.
While we would usually read that as a sign that they were up to some dirty deeds, we’re not sure that’s what went on since Kate's due date is mere weeks away.
If you ask us, they most likely spent the day shopping online for unisex baby trousers.
But then again, who knows!
Happy birthday, Prince William!!
[Image via WENN.]