The Walking Dead's Christian Serratos Announces Birth of Her Baby on Mother's Day

The Walking Dead's Christian Serratos announced the birth of her baby on Instagram on Sunday. "Happy Mothers Day from little W and me! ," the actress, 26, captioned her post, which shows her clutching the baby, fresh-faced and wearing two-toned glasses. She did not provide the baby's name or sex. In March, a source had confirmed to PEOPLE that Serratos and her partner David Boyd were expecting their first child together. "They're extremely happy and have been looking forward to starting a family...