My uncle has gotten a mare from a friend in the past three months. She is a maiden mare, as far as we know. About a month ago her ***** began to swell. For about the same ammount of time, there has been a white almost milk like substance that can be "milked" from them. She doesn't mind us doing it either. Her udders are also enlarging slightly. She was a little under weight when she got here and though we were told that she could be pregnant, we never noticed any signs of it until a few weeks ago. Personally compared to pictures that I have looked at she does not look large enough to be that far along. I don't know if it is my imagination, but her rear gate seems to have changed as well. The more I type the more it seems like she could be pregnant, but I don't have the funds to call our extremely expensive vet out here. Other than pregnancy what could this be?