I wonder if you would looked a little more in depth to the results if you could have figured out if it was a hereditary gene passed down from one of her parents or if it was a mere fluke at the time of conception ? Also wonder if she had shown tendencies from the very start and that was why she was left at the orphanage? Quite possibly if she was conceived out of a situation such as rape or something in that realm was her biological dad a serial killer or rapist and was her bio mom someone who decided she was going to keep her but after her birth she realized perhaps the child was more of a memory of what happened thus that's why she ended up at the orphanage ? Just a few thoughts to ponder I mean she is carrying your child as well as her own , you might want to look into the possibilities of just how common is the gene and if one of the parents carry it what are the chances of your child having it as well ? I know u have been through a lot and this is going to take time to even begin to heal , I just think you are going to see her and possibly your child in the future even you said you felt she let you live on purpose. Good luck and please keep us up to date if things start happening and you feel she may be around you the Lord only knows what she may have actually planned for you if she feels betrayed by you for digging into her misdoings , sorry about your dog you may want to consider getting another one for it may be one of your only tools in keeping you safe and alert to if she's around just make sure not to leave it alone for obvious reasons good luck !