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How does twin pregnancy occur in AI?

By Marta Barranquero Gómez.
Last Update: 07/23/2021

In order for a twin pregnancy to occur by inseminating a woman, it is necessary that two eggs are expelled at ovulation. In addition, it is essential that both eggs are fertilised, that the two embryos generated develop to blastocyst and that they manage to implant in the patient's uterus.

In contrast, for a twin pregnancy, the embryo resulting from the fertilisation of one egg must be divided into two. In artificial insemination, the fact that the embryo fragments during its development does not seem to be increased, so the probability of identical twins can be considered the same as naturally.

Suggested for you: What is the probability of twins with IVF and artificial insemination?.

 Marta Barranquero Gómez
Marta Barranquero Gómez
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.