Stages of IVF Embryo Development.

Stages of IVF Embryo Development.
Developmental stages of embryos after in-vitro fertilization. A. 8-cell embryo (Stage 2). B. 16-cell embryo (Stage 3). C. Morula (Stage 4). D. Expanded Blastocyst (Stage 7). All are excellent to good quality.

Misra AK (2005)