Yvonne Liu knew from a young age that she was adopted, but she didn’t know the details. All she knew was that she had been left by her birth mother in a busy stairwell in Hong Kong. It wasn’t until she was 30, on the night before a critical surgery, that she was given a handwritten note in Chinese that transformed her understanding of where she had come from.Meanwhile, Lynn Domina had never envisioned herself as a mother — until she met Amy, a spunky 8-year-old who was obsessed with “Harry Potter.”On today’s episode, we hear from two women about their adoption journeys and the emotions and discoveries they’ve experienced along the way.