What would you do?

Melissa💙
We have a wedding to go to tomorrow. It's an hour away & at 2 in the afternoon. I've got plenty of milk to leave with my mom who is watching the baby. But I'm so concerned with how I'm going to pump or relieve engorgment if it comes to that. My baby is 2 months old, and I've never left the house for more than 2/3 hours and I've never been further than 20/30 minutes from home. I'll pump and empty as best I can right bridge we leave, but we're leaving at 1 and don't plan on being back till 9/10 so I'm assuming I'll need relief at some point. What would you do?