When does a newborn considered born? Is there any consideration for umbilical cord?
In the case of head presentation, the newborn considered born when his complete forehead is already outside the vagina.
In the case of breech presentation, the newborn considered to be born when over 50% of the baby is outside the vagina.
See the Mishnah Niddah 3:5.
Shalom- Kol HaKavod on your recent conference presentation- I heard it was excellent and am looking forward to hearing the recorded version. I had a
אני בשבוע 27 להריון. יש חשש שהעובר אינו מתפתח, והולך וגדל הפער בין גודלו לבין גיל ההריון. במקרה שהחששות מתאמתים, והעובר הפסיק לגדול, מה עושים?