Certain Hindu teachers maintain that the soul enters the body during the fifth month, because before that time incarnation would be to difficult and disorienting without a more fully formed nervous system and brain.
Interesting that research now shows that the experience of fetal pain (and no doubt much more) is verifiable by the fifth month.
What a coincidence. /s
In this country abortion was legal until time of “Quickening”. When the woman could feel the baby kick. About the fourth month.
Even then they knew there was something alive and pardon the pun “kicking”
http://publishing.cdlib.org/ucpressebooks/view?docId=ft967nb5z5&chunk.id=d0e195&toc.id=d0e71&brand=ucpress