What is up with our cat?

Ok our cat is pregno. She is always cuddling with me and takes naps with me when i take a nap. she always wants to be in the same room with me when she isn't eating or whatever so she scratches at the door untill i let her in. she wants alot of attention from me. she doesn't normally act this way when she isn't pregno. i mean yeah she is cuddly but nto as much as she is when pregno.