Sith Lord or Jedi, Anakin is Anakin. She feels guilty for weighing him down, though, in reality, even pregnant, she was small enough to be carried with relative ease. Her guilt probably has more to do with failing him...leaving him. She hadn't wanted to or meant to. So she holds onto him tight now, amazed at his strength.

And she makes a promise to herself - like he has always taken care of her, she will take care of him.

"They are beautiful." she speaks softly after awhile, "I saw them. Luke and Leia."