We went on vacation a week after we found out we were expecting...it was just to GA to my SIL's but it was still away from home...the night we got there is when I went to the ER and they told me I lost the baby...
In the end though...I think it was better that I was away from work and stuff when it happenend...it gave DH and I chance to let it "sick in" that we weren't going to have a baby anymore...and prepared me to face all the people that we had just told...its been almost 6 weeks and I STILL have people asking me how I'm feeling and when we are going to find out what we are having...
I think it just depends on how you and DH feel about the possibility of something happening while you are away...
But on the optimistic side of things we live about 45 minutes from both Mobile AL to the east and New Orleans LA to the west and there are a TON of pregnant women going on cruises ALL the time...
Hope you are able to make a decision...