Life at conception is a relatively new concept even in the catholic church. Up into the 70s many US priests taught that "the quickening" was the point of ensoulment. That changed with the legalization of abortion by the supreme court and the modern pro-life movement. Biblically, it is even more confused and the protestant (and southern Baptist) incorporation is similarly recent.

https://embryo.asu.edu/pages/roman-catholic-church-quickenin...

http://www.bpnews.net/44055/how-southern-baptists-became-pro...