Is it time to stop?

Really wish I could speak to a lactation consultant, but unfortunately they are all unavailable at this time :( my son is 10 months old, and only breastfeeds three times a day now. But the past few weeks, he has been biting with all his force. Not just my boobs, but all over me. But today, things got serious. I was nursing him before nap time and he locked his jaw down so hard I had to stick my finger in his mouth and wiggle and pry it open. He bit through my skin and caused me to bleed. The past week, I have been taking him off the boob when he does this right away, and saying “no biting ouch!”, which has worked for us in the past, but this time around it doesn’t seem to be working. He usually only bites me when my let down is over and it’s not coming out fast anymore. Not sure what to do as he isn’t a fan of cups/bottles/etc and I’m worried he wouldn’t get enough milk if I switched him. Help ladies! My poor boobs need a break 😭

^^ little vampire eating blueberry oat cakes.