confused

LMP ko February 16 pati CAS ko February 16 din pero nag pag ultrasound ako this week naging january 20 inulit ko ulit after few days january 21 huhu nakaka lito talaga pinababalik ako ng ob ko this comming 17 can someone share same situation like me bat ganun na explain naman ng ob ko bilis daw ng development ni baby do anyone has same case here?