Since then, Duff has showed off pictures of her new baby on Instagram Stories, nicknaming her mae-mae.
Duff announced her pregnancy in October, when she shared an Instagram video featuring her husband, singer Matthew Koma, rubbing her growing belly.
Duff and Koma had their first daughter, Banks Violet Bair, in 2018 and married in May 2019.
Duff’s oldest child, son Luca Cruz Comrie, is from her marriage to former Canadian hockey player, Mike Comrie.
Her post was flooded with encouraging comments from other mothers who face similar challenges.
Duff concluded her post by writing, “Moms get high on feeling like superwoman…because we are!”