Yes, but this is precisely how every girl's menstrual cycle works. If fertilization doesn't occur, the egg released by the ovary will be flushed out along with the uterine lining in the form of menstrual flow. Obviously, you can't see the egg come out during your period.
Can eggs come out during period?
By Andrea Rodrigo B.Sc., M.Sc. (embryologist).
Last Update: 04/17/2018
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.