Why some women don't breastfeed

I know now why some women decide that breastfeeding isn't for them, at least for very long. I think I forgot this since I was nursing Emma, but babies BITE. And it hurts, very bad. Even without teeth, those little gums can clamp down with the force of a vice. And Sarah is so good about doing it so very sneakily. She'll be nice & sweet and then all of a sudden she's Dracula looking for her next blood fix. I keep having to remind the 3 1/2 month old that my boobs are not a teething ring. Kids with Down syndrome don't tend to get teeth this early, but they can show the signs this early. I'm not looking forward to another 9 months of Sarah using her gums like a meat grinder while she's nursing. I think an actual tooth would be preferable. At least then I'll be able to see what's causing me so much pain.