SUGGESTIONS! Gender Reveal to husband.

Hallie
So May 18th I am scheduled to have my ultrasound for finding out the sex of our baby. My husband has a pretty strict work schedule and may not be able to miss the time at work to go to the ultrasound with me. So I need suggestions on ways to tell my husband if we are having a boy or girl! Just in case he can't I want to be able surprise him some how. All suggestions welcome!