Probably a dumb question

Anne 💙💙💙 • Mom to 3 boys. August 2015, December 2016, December 2018
FTM and due in October. I've heard once you have an epidural you can't walk. So how do you go pee? Would you even know you have to go? Do they do a catheter or a bedpan? With how much I gotta run to the bathroom at 21 weeks this has really made me wonder.