No the first 2 weeks don't count. Your due date is based on your LMP. Women ovulate 2 weeks before their period. So basically the doctor is tacking on the 2 weeks or so prior to ovulation to make it easier to date pregnancy. Women with longer cycles, obviously, aren't as far along as their LMP suggests because they have more time between their LMP and ovulation.
I did the other day but I don't think it had anything to do with my pregnancy. I had horrible neck pain the yesturday and the day before cause I slept with my pillow tilted. This is so weird but I was younger when I had my other two kids. so I was doing the math and I just figured out the weeks 1-4 you don't really count... right??? lol Your first 5-8 is your first month... Am I on the right page with this???