By the fourth month of pregnancy, the foetus is about 18 cm long and weighs about 100 grams. However, the foetus will continue to develop and its organs will gradually mature.
Read the full article on: What Happens During the 4th Month of Pregnancy? ( 74).

Marta Barranquero Gómez
B.Sc., M.Sc.
Graduated in Biochemistry and Biomedical Sciences by the University of Valencia (UV) and specialized in Assisted Reproduction by the University of Alcalá de Henares (UAH) in collaboration with Ginefiv and in Clinical Genetics by the University of Alcalá de Henares (UAH).
License: 3316-CV