Do you think your due date was off?

Mines not as complicated, I had a scan that said due 30 June 2011 however I was quite sick around that point of time and my last 4 scans have all shown an EDD of 20 June 2011 - Same thing applies that I am so ready to get this baby out and he is HUGE! im scared theyre going to leave me to long and this kid is going to be absolutely HUGE before I have him!! ....... Least mines not too much of a gap and all I can do is hope that both of us have these babies "on time" so they dont get much bigger!!!!