M.L.
I worked from month 3-8 with my daughter. I found that working full time made it hard to keep up my supply. Having the child nurse more often throughout the day is really the key to keeping up the supply. I have a son also and I only worked part time when he was breast feeding and everything was fine. More than likely your daughter will probably naturally ween herself due to the decrease in milk. She will become less and less interested. However, I am a breast feeding nut and I was able to hang in there with my daughter for about 11 months with formula as a supplement. It is truly up to you. If you are very frustrated it might be best to stop. However, if you like it for the nurture and connection that it provides and the small amount of milk she is able to get, then I say keep going! Breast feeding is the ultimate connection that no one else can have-- ever!!!
M.