The use of the mirror as a compositional and storytelling tool made me stop and look a while during voting. That's a good sign so I scored it an 8. :)
This may be a bit of work, but I wonder how it would work if you had used a low reflector with gold color to bring more warmth and more light balance into this shot. It would not be visible in the mirror. The light on the arm and cheek is very harsh and cool now.
When my eye is drawn to the subject on the left, I wonder, "Where's the waiting?" When my eye sees the subject's reflection in the mirror, THEN I realizes the subject is pregnant. While the photographer's concept is good, it takes too long to identify the element of waiting. A more direct composition of the subject's tummy, perhaps with a calendar in the background, would have conveyed "waiting" much more clearly.