C.D.
This is a special time like none other, just enjoy your babies. There will be time for birthday parties later. Your 2 year old isn't going to even know it's his birthday except for what you tell him and even then he's too young to understand. Maybe just have a cake and gift, keep it super simple and just enjoy the warmth of being together. Sending the very best for a calm and beautiful birth. Blessings on All