The pregnancy test analyzes the level of beta-hCG in maternal blood to confirm or rule out pregnancy. A very high beta-hCG level in the first weeks of gestation raises the suspicion of a double pregnancy, but confirmation will be obtained when two gestational sacs are visualized on ultrasound or a double heartbeat is heard.
How is a twin pregnancy detected?
By Andrea Rodrigo B.Sc., M.Sc. (embryologist).
Last Update: 08/30/2022
Bachelor's Degree in Biotechnology from the Polytechnic University of Valencia. Master's Degree in Biotechnology of Human Assisted Reproduction from the University of Valencia along with the Valencian Infertility Institute (IVI). Postgraduate course in Medical Genetics.