| Beginning of organ formation: |
|
Five Weeks Gestational Age |
| Major organs have formed: |
|
Ten Weeks Gestational Age |
End of first trimester (12 weeks) - Risk of
miscarriage decreases: |
|
11 to 14 Weeks Gestational Age |
| Some preemies can now survive (23 weeks): |
|
23 Weeks Gestational Age |
| End of second trimester (27 weeks): |
|
|
| Estimated due date (40 weeks - full term): |
|
|