Every day we have more information about the effects of COVID-19 on pregnant women, the data is updated. So far, evidence suggests that the risk of miscarriage in pregnant women with COVID-19 is not high. To date, existing scientific studies have reported some cases of intrauterine or perinatal infection, but this is very rare and COVID-19 infection is unlikely to cause fetal malformation. The few cases known in infants infected with a coronavirus infection in the early days are mild. There are no serious cases in our observations. In terms of maternal complications, the most complex pneumonias occur in this period in the third trimester of pregnancy or in the postpartum period, i.e., a few weeks after birth, in unvaccinated pregnant women. COVID-19 infection in the first and second trimesters of pregnancy is associated with several complications. However, due to complications in the mother (especially in the third trimester of pregnancy), the frequency of preterm births has increased.
Ministry of Health of the Republic of Uzbekistan Practical Handbook on Treatment of Patients with COVID-19. TASHKENT August 15, 2020
https://www.familienplanung.de/schwangerschaft/informationen-zum-coronavirus-sars-cov-2/
https://frauenarzt-praxis-berlin-mitte.de/geburtshilfe/coronavirus-in-der-schwangerschaft/