Good luck.
A friend of mine in the 80s waited until his wife was in labour then snuck in a 200+g tank while she was having his son
Results were predictable. When she got back, I got a call from him asking if I wanted a new big tank
Fortunately for him, she calmed down & allowed him to keep it but he was in the dog house for a very long time. He deserved it though, the doofus
Hope the new baby is healthy.
Anthony
PS. Now's a good time to get off the computer & take her to the hospital.