breastfeeding shouldn't hurt

I'm constantly told breastfeeding shouldn't hurt, and sometimes it doesn't, but it doesn't help that it feels like my daughter is chomping on my breast. She's only two weeks old, so it's not like she's teething, that I know of, she has what looks like possible budding teeth in her lower gum. Is anyone else dealing with this too? I talked to a lactation consultant and they said my let down might be a little slow, but even after I let down she still bites. I'm at my wits end and am thinking of stopping breastfeeding because of the agony I'm in.