J.T.
It sounds like you are maybe rushing the weaning process too fast. Weaning should be done gradually - not suddenly for both mom and child. I got this from kellymom.com:
Sudden Weaning
Stopping breastfeeding abruptly, or "cold turkey," can be very distressing for both mother and baby and can cause plugged ducts, breast infection, or even a breast abscess. Hormone levels are also more likely to take a drastic plunge, causing mood swings, depression, etc. It's very rare that sudden weaning is truly necessary. If someone suggests to you that this is required, get a second opinion. It would also be helpful to talk to a lactation consultant and/or a La Leche League Leader, who will be able to suggest alternatives and, if necessary, help you to wean with as little distress to mom and baby as possible.
Gradual Weaning
Gradual weaning allows you to gradually substitute other kinds of nutrition, affection and attention to compensate for the loss of nursing. Gradual weaning also allows the immunity levels in your breast milk to increase (as overall milk supply decreases) and thus give your child a last bit of extra protection against infection. Weaning should occur as slowly as your situation permits to make it easier on both you and your child.
How long weaning takes depends upon too many variables to predict. Be as patient and as flexible as you possibly can. Weaning will happen, but you may feel at times that you're taking one step forward and two steps back. When you're actively weaning, be sure to offer lots of cuddling and extra affection during the day. As your child grows older, nursing becomes much more than a way to satisfy hunger and thirst. It provides him with much comfort, security and closeness, so be as sensitive to his needs as you possibly can be throughout the process.
Also, here is website on how to know if weaning is going to fast: http://www.kellymom.com/bf/weaning/weaning_faqs.html#toofast
Also, in case you didn't know it already, the World Health Organization and the American Academy of Family Physicians recommends breastfeeding until at least 2 years old.
I hope that helps!