Hi everyone, I'm 11 weeks pregnant, Dr has asked me to do a NT scan between 11-13 weeks. But I'm confused whether the scanning has to be done 11-13 weeks from LMP or gestation weeks. Please advice

its always lmp. nt scan chks the development of the baby

scan has to be done at period measured from lmp.
gestational age along with fetal measurements on usg is important for the radiologist to take the NT. But u need not worry abt this.

The date is always from the LMP date. The scan is important as it gives details of the baby's development as well as early indications of any birth defects.