Coronavirus disease 2019 (COVID-19) was first identified in December 2019, in Wuhan, China, and it is a serious public health emergency, particularly to vulnerable populations. Pregnant women and their fetuses represent high-risk population during outbreaks of infectious diseases. They have very high risk of infection, due to changes in their immune system. Limited data are available on COVID-19 during pregnancy. Therefore, we searched articles published between December 2019 and May 30, 2020, in three databases: PubMed, Embase and Web of Science, using MeSH words COVID-19, SARS-CoV-2 and 2019-nCoV. 39 articles were included, and they revealed that clinical symptoms of COVID-19 in pregnant women are not different from those of general population, and they can turn into atypical pneumonia. Only one maternal death was reported. Fetal distress, prematurity, and respiratory distress syndrome are frequent in newborns; one intrauterine death and one perinatal death were reported. The most frequent sign found was fever (77-86%). The main maternal perinatal complications were prematurity (47%) and pneumonia (40%); serious illness was rare (4.4%) and similar to the reported in the general population (5%); the most frequent route of interruption was cesarean section in 89% of the cases. Maternal-fetal transmission is not ruled out, since 8.5% (4/47) of the included cases had positive SARS-CoV-2 tests. More research is needed on the subject and management protocols in pregnancy with intentional search for transmission to the newborn.Copyright: © 2020 Revista Medica del Instituto Mexicano del Seguro Social.