Between 8 – 12 weeks of pregnancy is a good time for a dating scan. A 2-D image of a baby at about 8-9 weeks.

Which week is best for ultrasound?

The American College of Obstetricians and Gynecologists (ACOG) says that women should get at least one sonogram in the second trimester, between weeks 18 and 22 of pregnancy. You may also receive an additional ultrasound in the first trimester, before your 14th week of pregnancy.