IVF presents challenges for some anti-abortion Christians who believe life begins at fertilization. Dr. John Gordon is a Christian IVF doctor. He grew troubled over moral dilemmas in traditional IVF and now runs a faith-based fertility clinic in Knoxville, Tennessee. Rejoice Fertility clinic does not discard viable embryos, genetically test them, or donate them to science. Instead, it facilitates embryo adoptions and limits the number of embryos it helps create. Gordon’s approach resonates with patients who share his beliefs as debates grow over popular IVF treatments.