Week 18 is part of the fifth month of pregnancy and, therefore, of the second trimester of gestation.
Read the full article on: Week 18 of pregnancy: How big is the baby? Tips for mother ( 28).

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