1)5th house from lagan, Moon and Jupiter is well condition means free from natural malific and associated with natural benifical planet.
2) 5th house lord from lagan, Moon and Jupiter is placed in Kendra or trine or 2nd house.
3) Above all 3 lord is not placed in dusthan, or associate with natural malefic or combust.
4)5th house from lagan, Moon and Jupiter is not associated with debilitating or combust planet.
5) Jupiter is well placed in horoscope as a karak children.
6)If lagnesh and 5th house lord is associated with each other in good condition.
7)If 5th house is natural malific planet and associated with 5th house then doesn’t harm any thing regarding 5th house matters.
8)If natural malific planet is associated in 5th house and aspected by Natural malific then may cause harm for Children.
9) Jupiter and 5th from Jupiter has 4 or more than 4 Astakvarga Rekha.
10) SAV in 5th house has more than 28 Rekha.
11)If sign where Jupiter is placed and 5th from Jupiter has more than 28 Rekha.
12)If 5th house lord is retro and associated with natural beneficial planet then Native has best Son.
13)Sun is not very closely associated with Venus, within 3 degree.