With a degree in Biology (University of Malaga), Belen became a part of the Gutenberg Centre URE team in 1992. In 2008 she received the title of Senior Embryologist granted by the ESHRE, and in 2011 she received the ASEBIR Certification in Assisted Human Reproduction. She is part of the Cryobiology of ASEBIR Interest Group. Since 2017, Belén is part of the Board of Directors of ASEBIR.

She collaborates in the development of articles, projects and scientific studies. She is a member of ASEBIR, the Spanish Fertility Society, the Spanish Association of Andrology and the European Society of Human Reproduction and Embryology.