Template:Week 1 table
From Embryology
| Week 1 (GA Clinical week 3) |
|---|
| 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). |
| 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 |  
|
