How do i calculate fetus size?
Ultrasounds and PalpatingFetus size in late pregnancy can sometimes be estimated by palpating your uterus. A trained OB or midwife can guess fetal size by using her hands to feel approximately how large the baby is. Ultrasounds are also used to estimate fetal size but can be off on average by 2 pounds in either direction, leaving the results to be just a guess.AveragesAverages are an alternative way to calculate your baby’s size. At the close of the first trimester, the fetus weighs on average 0.5 to 0.8 ounces and is near 3 inches long measuring from head to butt. At the end of the second trimester, the fetus has grown to 1.5 pounds and 12 inches long, which is now measured from head to toe. By the middle of the third trimester, the average baby is 2.9 pounds and 15.7 inches tall.
