To the OP: seems like you have roughly 2 choices.
a.) continue on as you are and see if you can p(name removed by moderator)oint why your wife’s cycles include only 2 days where it appears that conception wouldn’t be possible. So look into getting another NFP instructor as others have mentioned, and maybe make an appointment or two with your wife’s OBGYN. This will take time and money and patience of course, and in the meantime you’d still be stuck with abstaining most of the month…
or
b.) ditch the NFP to avoid and just have sex whenever you want. (This one would be my choice, but I know it’s up to you.

).
I’m gonna get flamed for this but IMO using NFP in the way you are-- (you’re terrified to have sex more than 2 days a month, the two days where you’ve discerned that it’d be *impossible *to get pregnant; and you’ve said that if you did get pregnant it’d be a “disaster”)-- is using NFP with a contraceptive mentality. I think it would be prudent to re-evaluate your reasons to avoid, and maybe really think about whether or not you’re truly being “open to life” with your current situation. You and your wife did decide that you were ready to be married, after all.

Just my thoughts…
Last thing…if you choose option a. above, try to remember that there are a lot of couples who would *kill *to be able to have sex with their spouse twice a month. If this maybe helps to give you some perspective…my husband and I have been separated now for 3 months due to Visa issues (he’s an English citizen.) This is the second time in our marriage where we’ve been separated for 3 months. It’s really hard. We would love to have your two days, seriously.