No, you should not. There is not enough scientific information about consuming spirulina seaweed during pregnancy to determine the safety of its consumption during pregnancy. The safe choice, therefore, is to avoid consuming spirulina seaweed while pregnant.
Pregnancy and Coronavirus (COVID-19)
What effect does coronavirus have on pregnant women? Pregnant women do not appear to be more susceptible to the consequences of coronavirus than the general population and there is no evidence that the virus can pass to a baby during pregnancy