A cat at my apartment had her kittens a week ago on my patio. The mom cat has been around me since she was a couple months old so she's not exactly wild, I figured she would have her babies close to my apartment because she trust me and is always by my apartment but about 2 days ago (kittens were about 5 days old) she moved them and I can't find them and she keeps coming up to me meowing and looking at the place to gave birth like she doesn't know where they are. Is this unusual? I'm very worried that they may not be eating.