(CBS SF) – Tyra Banks is a mother! The former America’s Next Top Model host welcomed her first child, York Banks Asla, to the world via surrogate, and wrote a sweet message on Wednesday to thank the “angel of a woman” who carried the baby to term.

“The best present we worked and prayed so hard for is finally here. He’s got my fingers and big eyes and his daddy Erik’s mouth and chin,” the 42-year-old model wrote on Instagram. “As we thank the angel of a woman that carried our miracle baby boy for us, we pray for everyone who struggles to reach this joyous milestone. York Banks Asla, welcome to the world.”

So wonderful! This is Tyra’s first child with her photographer boyfriend Erik Asla. The new mom has opened up about her fertility struggles in the past, saying, “I’ve had some not happy moments with that, very traumatic moments.”


© 2016 CBS Interactive Inc. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed. The Associated Press contributed to this report.