The "WAP" rapper, 31, revealed Thursday she has welcomed her third child. She shared the news in an Instagram carousel of photos showing her cradling and breastfeeding the newborn in the hospital.

According to Cardi B's post, she welcomed the baby on Saturday, Sept. 7. "The prettiest lil thing 🌸🌸," she wrote.

Cardi B first revealed her pregnancy last month via an Instagram post that showed her standing on a balcony and cradling her belly. The same day she shared the news, it was confirmed that she had filed to divorce her husband Offset, who is seen with her and the baby in Thursday's Instagram pictures.

"With every ending comes a new beginning!" she wrote on Instagram last month. "I am so grateful to have shared this season with you, you have brought me more love, more life and most of all renewed my power! Reminded me that I can have it all! You've reminded me that I never have to choose between life, love, and my passion!"

She added, "I love you so much and can not wait for you to witness what you helped me accomplish, what you pushed me to do! It's so much easier taking life's twists, turns and test laying down, but you, your brother and your sister have shown me why it's worth it to push through!"

Cardi B and Offset married in 2017 but have had an on-again, off-again relationship over the years. In December, she told fans in an Instagram Live that she had been "single for a minute." They previously welcomed two children together: daughter Kulture, born in 2018, and son Wave, born in 2021.