Jo,
I'm sorry for your

I've seen so many of those in my life!!
I think I can completely understand what you are saying about it being hard with doing IVF and having a child already --- not being able to lie down when you feel miserable and trying to keep those mood swings at bay. You are so right. It's one of the reasons I decided not to do IVF again. I already have two (which is different than just having Siena), but I remember how I felt during IVF and how some days I just wanted to lie in bed and be selfish. I can't do that with Connor and Aaron running around. So, we're ttc without any RE help. I may eventually consider IUIs although we had no success with those before. I'm not interested in even the slim chance of multiples again. I love my twins but it's hard and I can't imagine two sets!!!
Your trip sounds like it will be a lot of fun. Isn't it great to have a little one to share these special times with? I love getting the chance to take C and A to fun places. Enjoy yourself and "celebrate" with a margarita!