Pregnancy tracker

I'm always asking Kelly: "Kel, so which week are we in?" (Which I typically follow with "hey, don't give me that look again!"). Something about the way you start measuring the precise day and week of the pregnancy has befuddled me. Thus today we completed a Pregnancy Calendar, courtesy of a Dr. Snow care package, in which one keeps track of the pregnancy's progress. Included with this calendar are stickers which one can affix to mark certain occasions. They are pre-printed with such 'momentous' announcements as "belly itches," "trouble sleeping," and "first fetal movement." Apparently they ran out of space for stickers declaring that "husband was a jerk" and "I feel like a cow!" It's hidden on the inside wall of my shirt closet, allowing me to nearly make out the correct month.