My daughter is HELPING me type so I don’t think my first reply posted.
I’d suggest catholic answers .com or EWTN.com both have areas you can ask questions of a priest or an apologist. They have been VERY helpful to me. Pope PaulXI institute would also be a good resource.
I don’t believe that it would be right to use any artificial means. When used correctly, NFP can be 99% effective which is more effective than some artificial means!
That must be a very hard situation to be in, know that our family will keep you in our prayers. Especially that you will find your way to the answers you need.