"I'm back!" Schumer posted on Instagram alongside a photo of herself on stage with a mic in hand at the comedy club.
Earlier this month, the "Trainwreck" star and her husband, Chris Fischer, welcomed their first child together. The pair were married in February 2018, and Schumer revealed eight months later that she was pregnant.
Most social media users who commented on Schumer's post were supportive, like one fan who wrote, "You go mama!!!" and another who said, "Wowza. Doesnt even look like you were pregnant for 18 months. You look great!"
"I cannot wait to hear your take on childbirth!!!!!" someone else said, cheering on the comic.