They measured the head of the baby and determined that I am right on track with giving birth on May 1st. Actually they estimate my due date of April 28th but we want to keep the May 1st date, since April 28th is our wedding anniversary.
Here is the image of the head of the baby.

And here is a picture of the baby's leg from the hip bone to the toe.
Now it really makes it seem real to me. As if the morning sickness and the growing belly weren't any indication!!!