There is no way to know until the woman's new cycle begins. If there has been a pregnancy, she will not have a period the following month and, if she takes a pregnancy test, it will be positive.
Read the full article on: Can I get pregnant while on my period? ( 55).
Degree in Biochemistry and Molecular Biology from the University of the Basque Country (UPV/EHU). Master's Degree in Human Assisted Reproduction from the Complutense University of Madrid (UCM). Certificate of University Expert in Genetic Diagnosis Techniques from the University of Valencia (UV).