Penny Parker, barn manager at Thornbury Farm Stables in West Chester, Pennsylvania, got a call from the woman who rescued the mare and needed a place to quarantine her for a month. Horses who are rescued from auctions often sit in crowded, filthy "kill pens" for up to a week, sometimes with no food or water. They can become very sick, which is why they can't be around other horses at first. Parker's quarantine pen at the barn was full, so she brought Ruby home to her backyard.
"Within the first three days, she wasn't really trusting, which was normal," Parker told The Dodo. "I tried to blanket her, and she kicked me, pretty hard."
Then Ruby's belly started to show. Parker figured the horse had worms, and had the vet come out to examine her. That's when they found out she was pregnant. No one could tell how far along she was since she was so thin, but the vet figured it might be three or four weeks until her baby came. (Horses are pregnant for about 11 months, so that was a pretty rough guess.)