Malamutes, I actually thought about telling the folks and In laws that "we tried and tried but found out we can't concieve" and leave it at that. But, DH parent's would encourage us to adopt, my folks on the otherhand are against adoption. So i would still open myself to further discussion of the adoption issue with his folks. But i cannot be 100% sure of how DH parents would feel about adoption.
If I did this it would be lying to my folks especially since I flat out told them NO KIDS. That is mean i know, but my husband says sometimes you have to twist the truth to get people off of your back.