scheduled c section

I have a c section scheduled for the 29th and I made the mistake of asking what the process was before the surgery at my last appt. it may sound stupid but ever since I've been having nightmares about getting a catheter put in! Especially since when they did the GBS swab it hurt sooooo bad! Do they put it in before pain meds or after? I'm not even worried about the spinal at this point which to me is just ridiculous!!