baby surprise

I got my chinchilla girl (Zoey) about a month and a half ago and she is 7 months old. Today I found that she had a baby. I didn't even know she was pregnant either so Iam just very surprised! and a really scared because Im not sure what to do. I have read online to check the weight of the baby and that mom will take care of them for the most part. Im guessing that she had the baby late last night or earlier today. Mom seems to be doing great she is moving and eating normally. Before I found the baby I noticed that she kept running up to me continuously and making a contact noise but thought nothing of it. Im scared to touch the baby because I don't know if its ok to or not but I checked it out and it seemed ok. I guess Im just wondering what should I do to make sure Zoey gives it proper nutrition because I know that she was bottle fed.. Anything will help. Thank You