I am new to this site; I have a Party Yorkie and am breeding her for the first time; how long is their gestation period. Just found out they are in heat for 21 days!!! What have I gotten into. Also have potty pads out and she'll go pee on the pads and poop in a entirely different place (livingroom) and NOT on the pad. She goes outside as well but only pee and comes inside to do her other stuff, like one I read before, HELP!. Thanks.