Day 2 embryos
2 cell Grade I
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2-cell Grade II
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2-cell Grade III
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3-cell Grade II
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4-cell Grade I
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4-cell Grade II
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4-cell Grade II-III
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4-cell Grade III
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4-cell Grade IV
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Day 3 embryos
5-cell Grade I
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5-cell Grade II
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6-cell Grade I
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6-cell Grade I-II
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6-cell Grade II-III
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6-cell Grade III
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6-cell Grade IV
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7-cell Grade II
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7-cell Grade II-III
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8-cell Grade I (fertilized with ICSI)
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8-cell Grade I (fertilized with IVF)
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8-cell Grade II
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8-cell Grade II-III
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8-cell Grade III
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8-cell Grade IV
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9-cell Grade I
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12-cell Grade I
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Day 4 embryos
Morula
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Day 5/6 embryos (Blastocysts)
Early blastocyst
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Full blastocyst 3ΑΑ
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Full blastocyst 3ΑΒ
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Full blastocyst ΒΒ
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Full blastocyst 3CC
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Expanded blastocyst 4AA
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Expanded blastocyst 4AΒ
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Expanded blastocyst 4AC
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Expanded blastocyst 4BB
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Expanded blastocyst 4BC
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Expanded blastocyst 4CC
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Hatching blastocyst 5AA
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Hatching blastocyst 5AA
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Hatching blastocyst 5AA
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Fully hatched blastocyst 6ΑΑ
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