I know how you are feeling. I am going for the 1st time ever without my DH. It will be me and my son 5 and DD 13 and my cousin 15. Well actually we will be there a week then he will come. I wanted to take the kids for Halloween so bad, then the Christmas Party came up and I wanted to stay for that too. The problem was my DH only had 5 vacation days left. I put off booking our vacation for 3 months because I didn't know what to do. He was telling me to go and I felt so guilty I couldn't think about it. My Aunt and Uncle and cousins will be there a few days while I am there so there was even more guilt that we will all be there but him. He won't get there until after they all leave.
I kept saying I don't know, I needed someone to make me decide.
Then one day my brother called and said you better book your tickets they are selling fast. My cosuin will never be able to get a ticket home if I don't book the day he called. So I went online booked the tickets and didn't think about it again. Until I was told you better book a room or you will be sleeping in the lobby.

So I booked the room and started making all the plans, the whole time with a knot in my stomach.
But guess what after a few days of planning, I was so excited I couldn't wait to go. I think The kids and I are going to have a blast.
I am going to miss my DH, ALOT. But when I think how excited the kids are and how much fun we are going to have, I know I'll get through it.
So I say go for it, once you start planning and the kids are all excited it will be well worth it. Your DH will be just as excited for you and the kids. I have never seen my DH so excited for us, or is he excited we will be gone a week.

Hmmm, I'll have to think about that one.