In the 15th week of pregnancy, the woman is in the middle of the fourth month of gestation. The belly is already noticeable and the linea alba may appear from the navel to the pubis due to excess estrogen and the release of melanin.
By Rebeca Reus BSc, MSc (embryologist), Zaira Salvador B.Sc., M.Sc. (embryologist) and Sandra Fernández B.A., M.A. (fertility counselor).
Last Update: 05/04/2022