Hi Casey.
Sorry that you've had to join our club, but welcome to the forum.
As Chris said the lost nerve bundles affect your husband's ability to get a natural erection rather than effecting recovery from incontinence.
He must have only very recently had his catheter removed and appears to be doing very well.
I had non nerve sparing surgery two years ago. It took about 6/7 months to regain full continence, which I believe is about average.
Unfortunately however, I am unable to get an natural erection anymore and have to use erection dysfunction drug injections.
I wish you both well and hope that you continue to update us on your husband's recovery.
Best of luck.👍