Current gestation does mean how far you are.
Surely it would be a typo?
Have you had any other scans that confirmed your date. The 12 week scan is most accurate.
My scans were always giving different dates, but only out by 1-2 weeks.
I'm sure your doctor will let you know at your next visit.
My first pregnancy seemed to go soo slow that i would have been over the moon if someone said i was 10 weeks further than i thought! lol
Hope it gets cleared up for you.
Cheers!
Melissa