Atharva veda mantra to conceive a baby and to prevent miscarriage/abortion

Pumansam Patram Janey Tam Pumananu Jayatam Bhagvati Rajarjeshwari Putranam Mata Jatanam Jamyashyam Yan

At the time of prayer daily in the morning take a vessel full of pure water, and keep it before Divine mother Rajarajeshwari in some form. After finishing your daily prayer take a few drops of water and reacting to this mantra, shower the drops on the lady. A small quantity of water and reciting this mantra, shower the drops on the lady. A small quantity of water may be taken by her with faith in Divine mother Rajarajeshwari. This is an atharvana Vedic injunction.

When a lady doesn't conceive after the birth of a child or there are continuous abortions after such state is called "KAKVANDYA". In such a case, when she wants one more child, the following mantra be recited 108 times daily for 21 days.

Om Nama shaktirupaya Rajarajesharee mama Grihe Putram Kuru Kuru swaha

In addition to the above mantra, the following be also followed:

Bring the root of Ashvagand on Sunday during Pushya nakshatra and mix it with the milk of Buffalo. Make a powder of it. This be taken by the lady with milk one or two tolas daily. After seven days she will conceive. Ashwagandha root can be easily procured in any Indian ayurvedic shop or by order online with many ayurvedic shops.

3.75 oz. troy := 10 tolas (Indian sub-continent)

This is a very strong and TESTED mantra, which is said to have been devised by lord SHIVA to RAJARAJESHWARI DEVI for securing a son.

Om Hareeng Haroong Putram Kuru Kuru Swaha

The lady should recite this mantra on a branch of mango tree or under the mango tree at a lonely place. The mantra is recited before lord SHIVA and RAJARAJESHWARI 108 times daily and for 21 days continuously.