Rabbit Test is a 1978 American comedy film about the world's first pregnant man, directed and co-written by Joan Rivers and starring Billy Crystal in his film debut.

Male pregnancy is the incubation of one or more embryos or fetuses by organisms of the male sex in some species. Most species that reproduce by sexual reproduction are heterogamous—females producing larger gametes (ova) and males producing smaller gametes (sperm). In nearly all animal species, offspring are carried by the female until birth, but in fish of the family Syngnathidae, males perform that function.