Christians: At which point does a person get a soul?

Question

At the moment of conception?
Right when the sperm and the egg meet?
At the zygot stage?
Embryo stage?
Fetus stage?
Delivery?
When the umbilical is cut off?
First nursing?

When exactly does a human get a soul?

Answer 1

I teach that it happens at conception. It's necessary for people to have a sould to be in the image of God, and since life begins at conception and Adam's sin is credited to people at conception, there must be a soul at conception.