This chart shows the blood plasma levels of during the menstrual cycle.
A spike in the amount of both gonadotropic hormones occurs naturally during ovulation.
By Laura García de Miguel M.D., M.Sc. (gynecologist), Mónica Aura Masip M.D., M.Sc. (gynecologist), Silvia Azaña Gutiérrez B.Sc., M.Sc. (embryologist), Xinxin Lin MD (gynecologist) and Cristina Algarra Goosman B.Sc., M.Sc. (psychologist).
Last Update: 05/02/2014