when penny and ed went back in two weeks for the ultra-sound , they realized they were almost as excited as they had been when she was pregnant about six years ago with the twins.-would there be two tiny little lives inside her this time ? -the doctor let them both look at the ultra-sound with him and when the image came up on the screen , it appeared to be a normal , healthy little girl ; at least they couldnt see a weenie as the doctor put it.-the weenie had been prominently on display when chrissy had gotten her ultra-sound a few days earlier.-so johnny and chrissy would be having thomas allan , tommy '' , for short .