I absolutely love 2 and 3. 2 Is stunning in my personal opinion and I personally would have loved it had I managed to get a shot like that during any of my pregnancies. It really seems to symbolize the unknown and that underlying worry that every mother feels along with the love,care and attention. It almost looks like that moment in the morning, where she takes that moment just for her, when the sun has finally crested over the mountains and nobody else in the world is awake..... that special sacred moment just for her and her wonderful growing miracle.
3 Is great as well, I like the personal touch of her face being more in focus, but also more cliche of the typical pregnancy shots that I've seen. Very attractive, very loving and caring, a look and expression that she would share with her child and her husband, a bond so beautifully portrayed. Though I have to say from my personal opinion, I prefer the position of her face in #2 over this one.