I have DISCOVERED that the pregnancy TEST was that OF kates!! Remember she said "Who flies with a pregnancy test?"!!BUT, Kate's questioning of it seemed as though she was the one travelling WITH a pregnancy test!! Almost as though she was mocking SAID person to defer attention away from herself!! Her LAUGH was fake. Creepy scene!!
ALSO!! Maybe Kate has TAKEN a pregnancy test before!! IT hints towards another Kate flashback!! Brief marriage!! Possible pregnancy!! I wonder if Wayne gave her reason for the test!! Perhaps there WAS more than one way for him to be a PART of her!! Yes, she said he never touched her, but we KNOW she lies, and this would be a good way to EXPLAIN her murdering him!!