<prompt> At 12 week pregnancy CRL is:60 mm100 mm120 mm250 mm  <response>: Ans. a 60 mmRef. DC Dutta 7th ed. 41; Williams Obstetrics 22nd ed. 91 By the end of the 12th week of pregnancy, when the uterus usually is just palpable above thesymphysis pubis, the crown-rump length of the fetus is 6 to 7 cm i.e. 60 to 70 mm. Please refer to above explanation for more details. 