Maybe my response is off - but the doctor seems very presumptuous to me to be telling you what you have to do on the spot as if you didn't have the right to think about it and say yes or no.
I am glad your reaction is positive, and you are handling this well.
Just remember, it is still completely YOUR CHOICE of what your boundaries are with your husband. If you have reservations or if you don't want to continue this, or if you don't want the doctor - or anyone - to spring something like this on you again, then feel completely free and entitled to speak up for what YOU want, whether or not anyone feels it is best for your husband or not.
Take care,
ShootingStar1