i live in oregon. i am doing a pet sitting service and i need some advice about what to do. remember my guinea pig that i needed to know how to tell if she was preagnent well i am pet sitting her parents.the ""preagnent"" one's name is Chesnut. her mom's name is Roisie, and her dad's name is bob. Chesnut has a sister named Olive. i dont know whear she is but i think she is doing good.back to the question. any advice for a pet sitter in need? if so tipe your BEST answer below. Tank You =)