New Baby Gender Game - Week 1

Answer the question (if you can't post here for whatever reason you may send a message on my facebook page) and anyone who guesses correctly will be put into a drawing to win the prize pictured!  Remember, if you know the answer because I've talked to you about it please don't be obvious that you know the right answer.

Here is the first question - All 3 of my current children were born within 24hrs of a holiday.  What holiday is this baby due on?

This week's prize:

A newborn sized perfect fit hat in white/pink/blue stripe.