How long do you nurse?

Ashley • 08-11-15 💙👶🏻CRJ 03-15-18💜👶🏻EAJ 01-22-21💚👶🏼
So I'm wondering about this because I'm kind of running into my own issue here. I'm wondering how much most of you are nursing your babies per side, per session. I've been doing 10 minutes per side with a burp in between and he would usually spit up a bit. My last two nights he's skipped our 2 AM feed and then this mornings feeds at 5 AM and 8 AM I can't get him to feed off the other side at all. I really don't want to pump, but I also wonder if it will hurt my supply by not pumping the side he hadn't nursed from. Any advice welcome!! Thanks in advance.