Traveling for 5 days w/out LO

Amber.
I have a work trip I have to go on when my LO is 4.5 months. I mean I really HAVE to go. We can't figure out a way to bring anyone with me so she can join, so we'll be separated those days. I'm so afraid she'll stop wanting to BF while I'm gone. I'm going to continue to pump, and possibly overnight milk home. Anyone been through something similar?