Question for extended BF

ariel8200

Hi all - I am at the six month mark with nursing dd. I plan to go to a year for sure. I am undecided about going further, but I am pretty sure I will go more than a year.

My husband and I are considering taking a cruise when dd is 14 months old, and we'd be gone for a full 3 three days and partial two days. Would it still be possible to keep nursing her after being gone for so long? I can bring my pump, but I don't know that it would sustain it that long? 

Thank you for your input!