Needing a group consensus

My friend and future sister in law is having her bachelorette party when our baby is barely 4 months old. The hang up is that it will be out of town, probably in New Orleans. We plan to breastfeed and I have no clue how this will work, or if I would even want to leave baby after 4 months. My guess is probably not! I'm also a bridesmaid... So I am feeling a little pressure. I have no clue what to tell her or how to tell her... Advice anyone?