I have polycystic ovaries, and because of this, I don't have a normal cycle at all. Sometimes, it is 60 days, sometimes it is months. Because of this, I can only take a wild guess of my dates, based on possible conception and my symptoms. I have been told that I will be given a more accurate EDD after my first scan, based on the size and circumference, etc. Has anyone here had a similar situation, and did it turn out to be accurate?