You are unique and thus the decision of when to transfer an embryo into your womb in the course of an IVF procedure is an individual matter. In this post, we will discuss the two most frequently preferred developmental stages when an embryo can be transferred into the womb – the cleavage stage (2-3 days after fertilization) and the blastocyst stage (5-6 days after fertilization). Blastocyst versus cleavage-stage With a natural pregnancy, the embryo reaches the womb in the blastocyst…