when I went to the gerbil room to have a last check on them I noticed something funny. my male was chasing my female and copulated with her. when he was finished he cleaned himself and then he went to the female and snuffeled at her genital organ, she didn't move at all. they did this for almost 15 min. is that normal?? and how long does it take to have babies when the have copulated 21days??? thanx
