LOL I heard it all through this last pregnancy. From the GP's & the midwives. My fundal height was often 4cm bigger!! So I would measure 34 weeks at 30 weeks. At my u/s at 19 weeks Jovie was measured at 22 weeks. Heaps different to my dates. At my u/s at 41+2weeks Jovie measured 10lbs 10oz. She came out 2 days later at 8lbs 13oz. Don't trust measurements!!! Trust your body & your knowledge. Both my babies have come out closer to 42 weeks gestation, it just seems to be the way my body works. Both are very healthy.