I have a potential stray, which I have been feeding and set up some shelter for him in my greenhouse. He has since acquired a friend, but didn't realise that this one was pregnant and had kittens in the corner of my greenhouse today. I am really stuck on what to do. I stretched in to put down a plate of food and she dived towards me threatening and making scarey fighting talk. I called the cats protection league, but they aren't there at the moment and will be calling me back in the morning. Should I be doing anything to help her? I don't even know if this one has a home?