When I was going through this question and this question I found out that after the death of a body, the soul has three choices: heaven, hell and moksha.
It is said that if soul/atma left the body through bramha randra then the person may attain Mukti/Moksha/liberation. But those who have done any type (Bad or Good) of karma in their lifetime (current birth) will leave their physical body through one of the nava randhra marg and get a new life (next birth/re-birth).
I want know about those souls who will get a new life (next birth).
There are 16 sanskar (sacraments of life) described in the great texts of Hinduism. In that first three sanskars are related to Pregnancy.
How does a soul enter in a new body? Is there any way to know?
Does a soul enter from the same Nav randhra marg that it left from?
In which month of pregnancy a soul enters into a new body (foetus)?
Is there any possibility of a soul choosing the wrong? If yes, then what happens?
What are the basic things (like the genetics of both parents) required for a soul to enter a new body?
What things come from the last birth into the new life? (like education, duration of life, etc.)
Does any Hindu text explain this?
I came to know that Punsavana (seeking birth of a male child) or Strisavana (seeking birth of a female child) sanskar is done in the third month after conception.
- Does this mean that a soul enters after the third month of pregnancy?
I got Strisavana (seeking birth of a female child) sanskar information from Ayurvedic books.