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At how many weeks can ectopic pregnancy be detected?

By Marta Barranquero Gómez B.Sc., M.Sc. (embryologist).
Last Update: 01/07/2026

By measuring the beta-hCG hormone in the blood, it is possible to suspect an ectopic pregnancy from the fifth week of gestation onwards when there is no adequate increase in this hormone.

Normally, the amount of beta-hCG hormone in the blood doubles approximately every two days. If this does not happen, it may be suspected that something is not developing correctly.

 Marta Barranquero Gómez
Marta Barranquero Gómez
B.Sc., M.Sc.
Embryologist
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
Embryologist. 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.