Hi ladies! So I had my calendar marked with my first day of the last period as December 13, 2012. I took my pregnancy test on Sunday, January 6th and it was positive. I was probably due for my period Jan. 6-8th at the very latest. So the calendar on this site says I'm in week four. Yet all the things it describes in week five sound like what I've been through. It states "this is your first week of a missed period." Well nooo, that was week four... So I'm confused, am I in week four or five? I'm going to see my Doctor on Tuesday to confirm my test. Hard to have an idea of what size baby is right now I get it, but I would like to follow along correctly. :) I'm just so excited!