Possible babys!

Been a long time sense i posted here, Mostly because I forgot my log in and such, but it appears i was lied to by a pet store and now i got a possibly pregnant chinchilla, Boco honestly didn't waste any time the little bugger.

Anyways I have 1 male and 1 female now who i caged together and because im stupid didn't check the others sex just trusting she was a male and went about with the introduction which went VERY well considering bocos anti social tendencies, at first they didn't seem to care much for each others but once i put a dust bath in there with them they got along just fine, ANYWAYS we decided to name our female Lily im not sure why but thats what my GF wanted and i just kind a left it at that, she is currently a year old while he is 3 years old. We think the breeding time is between November 15th and December 31st as we moved her in the 15th and just noticed she was a female around December 31st and im not sure what to expect i'v done my best to prepare the cage for babys or atleast half of it the other half is going ot be bocos home after she starts popping them out. but i could use some advice and what in general im suppose to do now