Coronaviruses are considered as viruses causing disease in humans and some animals. Some coronaviruses have mild symptoms similar to colds. On the other hand, some of them lead to acute respiratory complications. The new coronavirus known as Covid-19 is a seriously contagious viral disease infecting more than 10 million people during 6 months. This virus has signs close to SARS and this similarity led to public health hazard. There is a serious concern about pregnant women and their infants infected with this virus. Therefore, a lot of cares should be taken for these women during pregnancy and afterwards by obstetricians, nurses, and their close relatives. Findings indicated a possible vertical transmission of Coronavirus to the fetus through the placenta, but there is not any document confirming this report. This study reviews epidemiology, transmission, clinical signs, prevention, and treatment of Covid-19 disease with respect to the importance of pregnant mothers' health and coronal virus complications .