We have a stray female cat that we have been feeding and taking care of and at first she didn't come near us. After she became pregnant we started feeding her more and a few days before she had her kittens she started coming up to us and letting us pet her and hold her. She had her kittens under our porch. the just turned two weeks old earlier this week and last night i heard the cat and she sound like she was getting into a fight. when i got up this morning she was acting very strange i went to check for the kittens and they were gone. any ideas what would have taken them? and what can i do for the stray she is crying a lot and looking around i feel so bad for her