32 weeks, measuring 35 weeks?!

We had our 32 week ultrasound today, and our boy is measuring THREE WEEKS ahead of his EDD. They're estimating he's about 5.5-6 lbs already. I'm curious, what this could mean. I don't see my regular doctor next week (she's on vacation) and I am starting to freak out wondering the plan of action ahead. lol. I have school until early september, maybe... and the tech said the doctor will continue to monitor him with more ultrasounds. I guess what I'm stressing about more is that if I don't see my doctor for three weeks, and I'm already measuring at 35--by the time they do another ultrasound is it going to be pushing it?! These are all things I know common sense solutions to, I'm just a natural panicker and I suppose I'm curious if anyone else has gone through this.