I have a 10 yr old quarter horse that I rescued in August of last year. Her previous owner had passed on and his grown kids were not caring for the horses. They were just trying to get rid of all the horses so they didn't have to "deal" with them. They did have papers for the 50+ horses there but had no idea on what horse went with which papers. We were not worried about papers just giving a baby a good home. After paying for her and loading her in the trailer we find it that she has been exposed to a stud horse. Not that we would have changed our mind anyways but it would have been nice to know. Anyhow we think she is getting ready but I really don't know what I am looking for I have cows and I know everything about breeding with them but I am out of my element with horses breeding. She is developing a sack and milk I have pictures and her belly is HUGE. I just need to know what to look for and expect. Thanks in Avance!!