Dr. Randall A. Loy answers questions from around the world without ever leaving the comfort of his office. Viewer Mail Thursday is becoming a favorite and this week is no different.

Here's what viewers want to know: Can things that happen during childhood affect infertility? Does it hurt to harvest eggs or to put embryos back? Does the viability of frozen eggs degrade over time? How many embryos should be implanted? Are there ethical boundaries for Christians seeking the aid of reproductive technology?

Be sure to send your questions to [email protected]. You never know when Dr. Loy might choose your question as the topic for an upcoming episode.