Hindu Samskaras gives the pride of place to Garbha Dhaanam,the Rite performed to be get Good Children over other 39 Samskaaras by placing it at the top of the list and , in a Man’ Life, it is the First Samskara to be performed as an Adult.
In it is the Hindu’s Belief that a son will relieve the sin of the parents of the results of their actions .
A son, according to Hindu Sastras is a reflection of Oneself in as much as he is expected to continue the action sequences set in motion by his parents.
He is temperamentally more suited because of the genes in him .
Therefore, any action performed by the Father will affect the son directly or indirectly.
The great Tamil work Tirukkural states that one’s worthiness is known by his Offspring for he is the remnant of the parent’s results of action.
‘தக்கார் தகவிலர் என்ப ரவரர் எச்சத்தார்க் காணப்படும் .’
எச்சம் என்பது இங்கு மிகுதி என்னும் பொருளில் அமைந்துள்ளது .
It is also believed that one who does not have a son will suffer from the Hell designated as ‘Puth’.
Here Puth means, not a hell where one suffers physically and mentally, but as being born again for the non-performance of Rites after one’s Death by his son.
After the ‘Retiring Stage’ Vaanaprasthaa- of one’s Life, the son takes care of the worldly affairs of his Father , including looking after his mother while the father meditates for the Realisation of The Self.
Just before Death, the sun places his Father’s head on his left thigh and recites the ‘Karna Mantra’ in the Father’s right ear to enable the father to attain Salvation.
One should have a son to perform the Rites for the Ancestors.
Man in enjoined to have inter course at least once in his married Life.
Later it is not obligatory.
(Hinduism is of the Opinion that the act of Sex is to be get children in the interest of the son performing th Rites for the ancestors and the pleasure one gets out of Sex is only an unintended offshoot.
This also indicates that the Hindus, though they may have sex with their wives, child is not ensured for the Sastras mention Days on which one can have Sex.This tallies with the ‘Safe Dates’ of modern Medicine.
With whom one should not have Sex.
Pregnant woman,
One who is unwilling,
Diseased
Woman of uncontrollable temper
One who is Hungry
How to be with Wife.
Cloth beneath the Waist is not to be removed.
A small lamp is be lit.
If it is the first time, the Yagnapaveedham(Sacred Thread), should be worn as usual, that is, it should cross the Left shoulder.
At other times it should be ‘Niveedhi’-as a Garland around the neck.
please mention in which days and which week of the day and in which time one should met with his wife for health
I presume you mean for begetting child.
The proper time for conception is from the fourth to the sixteenth night after the monthly course of the wife.