Early Pregnancy Failure

The article is about confirming EPF - early pregnancy failure and suggests that in order to avoid false positive results, the criteria needs to be stricter as well as the waiting time for determination to be longer. Alex explains, "Three categories of pregnancy failure are an embryonic pregnancy (no embryo develops), a spontaneous abortion, or what I'm showing here - embryonic or fetal death where there is no heartbeat. In this illustration I'm showing an approximately 7.5 week embryo with a yolk sac abnormality, (this is very suggestive of a non-viable pregnancy, but is not a guarantee of a poor outcome)." Read the article.