Baby dreams?
If I am pregnant I can tell really early on just because my body does this weird excited jittery thing where it knows it has a secret. haha. dont ask we why or how but it makes me so scatterbrained that I cant think of anything but the baby and so far that feeling is how I knew with all my babies. Usually I dont trust my dreams they are too off the wall to be anything but my crazy bizzare subconscious.