After a three-year long adoption process, the actress's dream of motherhood came true about a week ago, after she returned from the African country with her son Yoby — a nickname for Eyob, his given name.
"I am thanking my lucky stars every day," Britton, 44, tells PEOPLE.
The day she first held her son in her arms was a moment the new mom will never forget.
"It was such a wonderful moment of completion," she recalls. "I thought I was going to collapse into a puddle of tears. I was just grinning from ear to ear."
(image via: http://celebritybabies.people.com)