@arielle16 the engineering pathway would be cheaper as Maam @RheaMARN1171933 has mentioned however if you intend to work as a nurse you will still be required to be registered with AHPRA, hence, will still need to undergo the bridging program unless you finished your nursing course in one of the countries where Australia has a reciprocal recognition like UK, Ireland or NZ, etc.
If processing accreditation with EA takes as you've mentioned 10-15 months, consider this, if you have the resources for the BP now, be able to get a slot and finish it in the next 10-15 months, by the time your hubby get his accreditation with EA, you will also be registered with AHPRA and be ready to legally work as Registered Nurse in Australia.
The next consideration would be as to who between the two of you has the better score in the points table to be the main applicant, and would have the benefit of additional 5 points from partner skills.
As such, as soon as you do your moving in, both of you could start working right away and easily offset the cost of the BP.