Skiing during 2WW

Jaimie
My DH and I have had a ski trip planned for months, but now that we are realizing it falls right at the end of our 2WW we are thinking about canceling it for many reasons - not sure if I should ski, I've heard altitude can effect pregnancy and I would hate to get a BFN at the beginning of a vacay. Thoughts? What would you do in my situation?