My Lo is 7 months now and have 2 tooth. He has beenk biting my nipple for few days while latching already. When i shout pain. He laugh and when i scream in pain when he bite harder. He cried and refused to latch again. How to stop your Lo biting your nipples?

I will be firm and said no. If he were to latch and bite again, i will unlatch him and don't allow him to latch. To them it's fun and interesting to see mommy's reaction, but they don't understand the pain. Be firm and explain nicely even though they are 7mo old only.