Is it this story:
Then and Now ---by SpuffyLovingJess http://spikeluver.com/SpuffyRealm/viewstory.php?sid=9135Summary: All human AU: William and Buffy were a happily married couple, completely in love with a baby on the way when a cruel twist of fate changed their lives forever. Will they be able to overcome the shadows of their past and move forward together, or will life once again have other plans in store for them? (Note There is a lot of angst, but also a lot of fluffy spuffy and yes, some sappy romance.