The 35-year-old took to Instagram Monday after welcoming a baby boy, Chase Omari, with husband Chris Samuels.
"It's... A... BOY!!!! Told yall! I'm 3 for 3 with guessing genders now," Samuels wrote. "Chase Omari Samuels born 1 week early (today) at 4:56pm weighing 8lbs 15oz 21" long!"
"Thank God for a safe and fast delivery and one healthy baby boy!!!! Thank you all for the well wishes and prayers," she added.
Samuels also gave fans a glimpse of baby Chase in a video on Instagram Stories.
"So, I had another little man! Knocked out, mouth wide open, lookin' just like daddy," she said of the sleeping infant. "And he's so sweet, he's so chill already."
Samuels and her husband, a former NFL player, are also parents to 5-year-old son Christopher and 3-year-old daughter Milani.
Samuels announced her pregnancy in June after having a miscarriage in 2017.
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"It kind of haunts you," the star told People in July. "The first times I was pregnant, it came so easily. I took that for granted. Now that I'm pregnant again, it's almost like I second guess everything that I'm doing."
"I'm staying positive, staying encouraged, and trying to take it easy," she said. "I feel great."
Samuels joined "The Real Housewives of Potomac" in Season 2.
The Bravo series completed its third season in August and co-stars Gizelle Bryant, Ashley Darby, Robyn Dixon, Karen Huger and Candiace Dillard.
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