Rather, couples in the study had slightly lower chances of conception if the male partner had been infected with the coronavirus within 60 days -- which offers even more reason to get vaccinated against Covid-19, since the illness could affect male fertility in the short term, according to the study, published Thursday in the American Journal of Epidemiology.

"These findings indicate that male SARS-CoV-2 infection may be associated with a short-term decline in fertility and that COVID-19 vaccination does not impair fertility in either partner," the researchers -- from Boston University School of Public Health and other institutions across the United States -- wrote in the study.

SARS-CoV-2 is the name of the virus that causes Covid-19.

"This adds to the evidence from animal studies, studies of humans undergoing fertility treatment, and the COVID-19 vaccine trials, none of which found an association between COVID-19 vaccination and lower fertility," the researchers wrote.

"Similarly, several studies have documented no appreciable association between COVID-19 vaccination and miscarriage risk."

The study included data on 2,126 women, ages 21 to 45, in the United States and Canada.