K.D.
I nursed pregnant. It was very uncomfortable for the first minute that my son latched on, but it was not unendurable and it subsided pretty quickly. I would encourage you to keep nursing another couple of months, til your baby is at least one! If you do wean, the La Leche League book "How Weaning Happens" was very helpful to me. If you think you may want to continue nursing, some women even nurse both kids. There are tandem nursing books that may help you know what to expect with that, too. If you'd like more input, the Austin Attached Families yahoo group has been a great support system to me.
Good luck,
K.
Mama to Milo (2.75 years old)