Okay so I'm 12weeks and a few days. My tutus is up high (my dr said that was really good) and on my first sono I took the other day says the baby is 9cm.. By this baby tracker app it says the baby should be 3cm.. Is my baby going to be huge to where I'll have to do a c-section?! Is it ok that the baby is 9cm in 12wks and not 9cm in 14 like it says on here it should be... Sorry if this is dumb but I don't know honestly..