going on my delusional babymoon anyway?

obviously i thought i would be pregnant by now. trying since october of last year and recently diagnosed with PCOS. first letrozole cycle just ended in a BFN.

since we began trying, my dream was always to go on a big trip to europe for a babymoon, it's a place i've always wanted to visit and i thought it would be perfect. good seasons to go are fall and spring. well the window for spring has passed and the window for fall is passing quickly too. i'm a meticulous planner, and every month that goes by my new plans fly out the window all over again.

my husband and i have been saying as soon as we (optimistically) started letrozole, "as soon as we get the positive we'll plan the trip!" but the positive just is not coming. every month on top of "youre not pregnant" its also "you dont get to go on your trip"

my question is-- should we book the trip anyway? the idea of spending so much on a trip when i could be suffering through a puke-y first trimester seems unwise. at the same time, the process is long and getting longer. i would love to have something else to look forward to and plan for.

what should i do?