To calculate the gestational age we look at the first day of the last menstrual period. We will be able to confirm with more certainty the gestational age by means of the ultrasound scan of the 12th week.
Read the full article on: When does week 1 of pregnancy start? – Are there any symptoms? ( 62).
Óscar Oviedo Moreno
M.D.
Bachelor's Degree in Medicine & Surgery from the University of Caldas (Colombia). Specialist in Internal Medicine by the Pontificia Universidad Javeriana of Bogotá. Degree standardized in Spain in 2003. Specialist in Gynecology & Obstetrics from the Complutense University of Madrid, with residence at Hospital Clínico Universitario San Carlos de Madrid. Expert in Reproductive Medicine and Certification in Obstetric-Gynecologic Ultrasound (levels I, II and III).
License: 282858310
