Biting!

Please help. I'm getting discouraged because my almost 7 mon old is biting me now for about two weeks. He's got one tooth now and I'm afraid for when he gets more. I sometimes am afraid to feed him and feel really tense which makes me feel guilty but I NEVER refuse. 😔 I've tried saying "NO!", I've faked cried (he laughed- the brat). It hurts. I'm bruised but I don't want to quit breastfeeding yet! (He has no interest in any type of bottle anyway. Any suggestions?