Usually, the onset of menstruation occurs a few days after the embryo stops developing and detaches from the endometrium on which it had implanted. However, there are situations in which there is a delay in menstruation due to the hormonal imbalance caused by the pregnancy and the subsequent loss of it.
When does my period set in after a chemical pregnancy?
By Andrea Rodrigo (embryologist).
Last Update: 02/23/2017
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.