Thats the quickest rescue on record,shes a beautiful Tabby/tortie though difficult to tell in poor light, most def pregnant. The people who have been feeding her have already named her Tinkerbelle and will take her back in approx 3 months when spayed, so Liz I promise we will call one of the little ones Gem after your beautiful girl.
Will try for pics tomorrow in daylight and when she is a little more settled.