Here's something that will make you AND your hubby happy....in my opinion anyway...
You have training in education, and you love being around pregnant women, right? Well, have you ever considered becoming a childbirth instructor? Or perhaps a doula? Here are some links:
http://www.lamaze.org/2000/certification.html
http://www.dona.org/
Neither require a nursing degree. It's a good compromise.
However, if nursing is what you want, one of the universities in my area is offering an accelerated degree program for adults who have previous bachelors degrees in other fields of study. It is a one year intensive program. Maybe somewhere in your area there is a similar program.
Good luck in whatever you decide.