When only 6 weeks have passed since fertilization and pregnancy, the fetus is small, about the size of a pea. At this time, the fetus measures about 2-6 mm approximately from head to the end of the spine, known as the craniocaudal length (CCL).
In addition, the fetal head is quite large and curves in toward the body. The fetus will gradually develop until delivery.
Read the full article on: The Sixth Week Pregnancy: Embryo Evolution and Symptoms ( 46).
By Blanca Paraíso M.D., Ph.D., M.Sc. (gynecologist), Marta Barranquero Gómez B.Sc., M.Sc. (embryologist), Zaira Salvador B.Sc., M.Sc. (embryologist) and Marie Tusseau (invitra staff).
Last Update: 07/31/2024