Lyles threads the catheter through her cervix. When the catheter is at the proper depth, his assistant pushes slowly on the syringe so the tiny cells will go to just the right spot at just the right speed. Carlyn doesn't feel any pain except for the barest whisper of burning. The room is quiet, save for the whirring of an overhead fan. Scott looks at Carlyn's face.
Tears stream down both their cheeks now.
Lyles slowly withdraws the catheter. Holding it carefully in front of him, he turns back and passes it through the window. Wilson places the catheter under a microscope making sure embryos are not still clinging to the tip. Human eyes alone cannot see these cells. Lyles turns off the lamp and pulls the sheet over Carlyn's legs.