If the date of the last menstrual period or LMP is not known, the woman should wait until the first trimester ultrasound to use the gestogram. After the ultrasound, the specialist will tell the pregnant woman the LMP that corresponds to the foetal development of the baby at the time of the ultrasound.
Read the full article on: What is a gestogram or pregnancy wheel and how is it used? ( 51).

Silvia Azaña Gutiérrez
B.Sc., M.Sc.
Graduate in Health Biology from the University of Alcalá and specialized in Clinical Genetics from the same university. Master in Assisted Reproduction by the University of Valencia in collaboration with IVI clinics.
License: 3435-CV