About the chick who wanted to know if it was cool to take a couple BCP to adjust when a potential due date woud be then DD. Here is my answer which I so kindly typed out before you deleted your post
You are CRAZY!
EDD (Estimated due Date) - it is an estimate of when your baby would be due. I had mine 2 weeks early. If you are really that concerned about the specific day you want to have a baby I would say you are NOT ready to have a baby!