I think that your wife may find doing her appointments in the morning and working at home in the afternoon a bit difficult by herself with twin babies in the house. You will have to keep us updated on how that's going. Good luck
This is such an exciting time. I'm a couple years older than you, but I have a 15 year old (had her at 22). I do miss those sweet times when she was a baby/toddler. Enjoy.