She had been missing for 5 weeks and returned tonight, very skinny and hungry....and apparently pregnant too. She ate good when we first brought her inside and then she aborted a kitten...just one, no more and that has been hours ago. Since then, she has been eating well, drinking water well, and using the bathroom well. She is resting and seems to be okay other than being so terribly skinny. What are the best tips you all know of to get her back to a healthy weight?