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Anyone's animals like follow you around or lay on you while you're sleeping. Granted my 12 year old cat used to do it before, but for the past few weeks she hasn't come near me. Now everytime I go to take a nap she's on me, and gets right back on me if I roll. Before if I rolled she stayed off. 
She's doing it right now lol
My other cat who is 1 won't stop following me around. Ever since I got the first positive pregnancy test she follows me. Into the bathroom, into the kitchen, and into the bedroom. Today she almost followed me outside and at the last minute she realized what she was doing and ran back inside (she's a werid cat because she hates the outside. She's scared of it)
This was one day when she followed me into the bedroom lol. 
Has anyone else's animals acted differently since they have become pregnant? Mind you I'm only 3 or 4 weeks along! :)