Who is that little girl? Amy is pregnant and by the pictures, that little girl is her daughter. Also, that little girl can regenerate, and has super strength, and it's pretty clever, so, that leads to think it's a time lady. And the only time lord alive now it's the Doctor. So?
And River kissed the Doctor, and her comment leads to think that she can't be the little girl.
Why is so confusing!!!!! I need explanations and maybe spoilers!