lice gestation
Answer by rosieposey78 (1304). Gestation time for head lice is 10 days from the point that a female lays the eggs and the nits hatch. An adult can live for up to 30 days on its host.If bedding and other items are not properly treated, eggs can hatch and a nit can reinfect a host. add a comment.nswer by mcmario2007 (786). The gestation time for head lice is approximately ten days and the best way to get rid of the lice is to use a proper shampoo meant to exterminate head lice. add a comment.