B ringing children into the world and raising them is generally considered one of life’s great joys. But for some hopeful parents-to-be, just “letting things happen” isn’t an option. Gay couples may choose to adopt, or figure out some kind of family arrangement outside the longstanding one-mommy, one-daddy equation. And same-sex couples often face fertility challenges, just as hetero couples do. Add the expectations of would-be grandparents into the mix, and it’s a wonder any child ever gets