A surprising thing is happening to some women on weight-loss drugs who’ve struggled with fertility issues: They’re getting pregnant. That’s leading to questions about the safety of medications from Novo Nordisk A/S and Eli Lilly & Co. during pregnancy.

“I thought I couldn’t have any more kids,” said Torria Leggett, 40, who had been trying for another after her first child was born in 2018. In 2022, the social worker from Whiteville, North Carolina, began taking Novo’s Ozempic to treat obesity, then switched to Lilly’s Mounjaro. As the pounds melted off, there was soon another reason to celebrate. She was expecting.