Template:Week 1 table
From Embryology
Week 1 (GA Clinical week 3) | |||||||||||||||
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Week 1 of fertilisation age begins on the day of fertilisation, while the clinical gestational age (GA) is measured from the first day of the last menstrual period (LMP).
Concepts
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Week 1 summary | ||||||||||||||
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Event | ||
Secretory Phase | Fertilization, Secretory Phase | |
Stage 2 | Morula, Blastula | |
Blastocyst Development | ||
Stage 3 | Blastocyst Hatching (zona pellucida lost) | |
Late Secretory, Blastocyst (free floating) | ||
Stage 4 | Adplantation | |
Stage 5 |