I mentioned on these boards a couple of weeks ago that I just found out i was pregnant. I still haven't been to the doc yet, but my best guess says I will be due July 21-23. We are looking at cruising on the 4 nighter over Thanksgiving . It will be me, DH, and twin DD's age 12 plus baby-about 16 or so weeks. Should I book 2 cat 9's or 1 cat 4 room??? Is there that big of a difference?? Thanks