Yes, but it is also possible to know from the 15th week of pregnancy through an ultrasound. However, if it is a twin pregnancy, it is more complicated to know the sex of the babies, since they could cover each other. Therefore, it will depend on when the ultrasound is done and how calm the babies are.
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
