Responses
Embryo means a baby but in an early stage like around 1-7 weeks. I think it means that Jinyao already donated his and it's (or the baby) is already in growing in progress, which is the kid now. And since we know that Yiyun also donate his in the beginning I think his donation went to someone else.
Sorry for the confusing explanation, i hope i enlighten you even a little
Can somebody enlighten me what’s going on or what the meaning of embryo or whatever is name!!