I honestly don't know.. I had arrangements weeks in advance to pick her up from her previous owner, and the woman I got her from failed to even tell me she had a cage mate until I had already paid the money for Mindy (sketchy, right?). I keep her in my room in the basement with me (Because it is the coldest room in the house), and it is usually dark, but I try to keep the light on during the day, and turn it off at night. She seems slightly more active at night, but not much. I bought her all kinds of toys, and I should have my room chin-proofed by the end of today, so she will be allowed to roam around a bunch. I have just been talking to her through the cage, but when I go to feed her or move something in her cage, she gets a little freaked out by my hand. I have made no attempt to pick her up or handle her since I got her. Do you think she will cheer up a little once the room is safe for her and she can get out and play?
Also, if she does end up being pregnant, how will I know? I am a first time chinchilla owner, and like all new chinchilla owners, I am a little worried that I am not going to be able give her the home she really needs/deserves.