According to the 9 Aspiration Formula

The west is the sector to enhance the luck of children and the luck of bearing children. For those who cannot conceive pay close attention to this sector. If there are toilets or kitchens here chances of miscarriages are high. Suppress the toilet with lights and candles. For other kinds of room enhance with wind chimes.

Next Apply the 8 Mansions Formula

To increase luck of having descendants sleep with your head pointing towards your longevity direction. Click here to find your longevity direction.

Flying Star

Watch for combinations 4/8 as it brings bad luck and trouble for children. Cure with the color red and bright lights.