So I had my appointment today and I'm 29 weeks but when my doctor measured me he said I was…

So I had my appointment today and I'm 29 weeks but when my doctor measured me he said I was measuring at 36 weeks! 😰 How normal is that? The nurse said it could be extra amniotic fluid. I'm getting an ultrasound done but not until my next appointment which is April 9th. It's going to be killer to wait that long. I've only gain 7 lbs and I don't think I'm that far off on my dates. I just hope my baby is okay. I did pass my glucose test as well so that's a relief.