What is a finding that is suspicious for, but NOT diagnostic of pregnancy failure? 1) Absence of embryo with heartbeat 7-10 days after a scan that showed a gestational sac WITHOUT a yolk sac 2) Absence of embryo with heartbeat 11-14 days after a scan that showed a gestational sac WITHOUT a yolk sac 3) Absence of embryo with heartbeat 15-20 days after a scan that showed a gestational sac WITHOUT a yolk sac 4) Absence of embryo with heartbeat 21-28 days after a scan that showed a gestational sac WITHOUT a yolk sac
