Crystal is 65 days pregnant, for the past 6 weeks she has been really nasty with us and hissing not wanting strokes etc which isn't like her as pre pregnancy she was a very affectionate cat, anyway got up this morning and she wants me next to her constantly, she is licking me all the time and is even wanting me to rub her belly, she is lay in her nesting bed and i'm sat on the floor next to her as if I move she moves with me. she is purring all the time and is licking her bits now and again, she has no milk in yet she keeps dry heaving a little. Is this early labour???