When I was at the doctor yesterday, I'm pretty sure my doctor said I'm measuring about 33 weeks. I…

When I was at the doctor yesterday, I'm pretty sure my doctor said I'm measuring about 33 weeks. I didn't even process it until later so I didn't even ask her about it. What does this mean? Just that my belly is bigger than it should be for my being 30 weeks or that I could end up going a few weeks early?