If there's no reason to be in a hurry to TTC, I'd also recommend holding off. The tiredness is a real killer in the first trimester. I would hate to think of you and your DH spending all that money for a fabbo trip, to find you are so tired you need to be in bed for an afternoon nap each day and then in bed early each night. Even if you're lucky enough to miss out on morning sickness/food aversions, just the tiredness and need to eat carefully would make harder to travel while pregnant than not pregnant. Maybe you could TTC while you're away instead, so that you're very very newly pregnant while away.