Any Houston dog rescue organizations that are still taking in rescues?

Shy pregnant pit, was possibly left behind after her owner moved away. I need help finding potential fosters for her! Shes been at the entrance of my neighborhood for about two weeks now and have been feeding her for about a week. I would love to bring her home but I can't because of my own dog. Unfortunately, he's also a very shy guy and doesnt react well to new dogs. I'm scared to take her to a shelter because of how over crowded they currently are but I dont want to leave abandoned, especially with the weather we've been having. Are there any rescues that could possibly help or would be able to take her in?