We have a new dog that we adopted, or I should say it adopted us. A stray dog that I decided it might be worth keeping. She doesn't appear to be to old so I'm thinking this is her first time in-heat. Well anyway we have only had her for about a month and she is now in-heat. I have no kennel pen to keep her up in or other dogs out. I put her in the old chicken coop but the soil is so soft she easily digs out. She was out this morning and doing the wild dingo dance with my other adopted stray, whom I have on a chain. So now that she is definitly bred, is there a shot I can give her to abort the pregnancy? I was hoping to come into some extra money and have her spaded. Hoping I still had some time, but quickly ran out.