High Quality Content by WIKIPEDIA articles! Rabbit Test is a 1978 comedy motion picture about the world's first pregnant man. Its title is derived from the rabbit test previously used to determine pregnancy. Directed by Joan Rivers, Rabbit Test stars Billy Crystal as Lionel Carpenter, a night school teacher who has bad luck with women, remaining a virgin until his brash cousin Danny (Alex Rocco) sets him up with a one-night stand. Soon after this, Lionel starts feeling nauseous and throwing up, eventually doing so onto Segoynia Savaka (Joan Prather), one of his immigrant students. This turns out to be a blessing in disguise, as it gives him an excuse to ask her out on a date, and a romance develops.