The above two charts of my friend who are expecting their second baby in 2012. Wife is Libra ascendant at the time of birth whereas Husband is Virgo ascendant at the time of Birth. We have plotted the positions of the transit planets on their natal chart.
The second child is seen from 7th house and the Karaka for children and progeny is Jupiter. Look the at the wife chart. Jupiter entered into aries in May 2011 and she became pregnant somewhere in Dec 2011. Similarly look at the 8th house of the Husband. The 8th house is 2nd from 7th house which represents addition to family. Jupiter is occupying the 8th house of the Husband. Also 8th house is 5th from 4th. Jupiter is 5th (5th house represents progeny) from Venus (representing wife) in Husbands chart.
Power of Divine. Om Shri Ganeshay Namah.