Marriage of a couple is understood successful if a child takes birth in their family. Astrologically when we have to see the promise of child birth, we'll have to check first their procreative power. The men’s strength for impregnation depends on the Sun and the strength of the semen on Venus. The sound condition of the ovary in female is indicated by the Moon while the fitness of the ovum is shown by Mars. The conception takes place when the seed (Father) is healthy and the soil (Mother) is fertile.
Relevant houses: 2nd House – Family and its expansion. 5th House – Children in general and Conception of 1st child in female chart. 6th House – Labour pain in Female horoscope. 7th House – 2nd Child or conception in female chart. 8th House – Operation. 9th House – 3 Child or conception in female kundali 11th House – fulfillment of desire and it is also 5th house from partner’s house i.e. 7th house. 12th House – Hospitalization.
Relevant Planets: Jupiter is Putrakarka. Venus is Sperm. Relevant house lords are primary or secondary functional significators. Ketu is abortive. Natural malefic and functional malefics are hinderance in child birth. Mercury and Saturn are impotent planets.
Relevant Signs: Aries, Gemini, Leo and Virgo are barren signs.
To judge anything about progeny or children, following factors are important: Fifth house and its lord . Naisargika Putrakaraka, i.e. Jupiter, Sun, Venus, Moon and Mars. Lords of Lagna, 5th House and dispositor of 5L and Jupiter. Lords of Navamsha of Jupiter, 5L and 7L. Planets occupying and aspecting the 5H/L. Divisional chart Saptamsha. 9th house, by the principle of bhavat bhavam. Operational Dasha Period.