The Spiritual Center

Sit in a comfortable sitting position, preferably cross legged.
Center your attention on the point located two inches below your navel, the spiritual center of the body.
Begin rocking back and forth slowly, decreasing the arc with each rock until you rest at your natural center of gravity.
Press your tongue on the upper palate. Breathe through your nose and taste your breath. Imagine your breath coming down into the spiritual center below your navel and returning.
Begin counting each inhalation and exhalation. Count to ten and then go back from ten to one, starting over once you reach one. If any thoughts arise, acknowledge it and let it pass by returning to the count.
Each time you redirect your thoughts, you are giving yourself the power to put your mind where you want it.

Read more: http://www.parentingweekly.com/pregnancy/breathingspace/vol40/pregnancy_meditation.asp

Focus Your Energy

Sit in a comfortable position and begin breathing deeply. Relax and slow your breath. Breathe as if you are right next to a tree branch that can not be swayed by your breathing.
Close your eyes and put your hands out in front of you. Feel each hand and notice the life force that pumps through them.
Continue breathing deeply but breathe as if you are breathing into just one of your hands. You will start to feel an increase in energy in the hand on which you focus.
If you have a certain place in your body that needs healing, try focusing your breath on that area, as if you are breathing with that body part. If you are feeling depressed, try focusing your breath on positive thoughts. For example, if you are feeling down about your appearance or something you've done, try focusing on what is beautiful about your appearance or something good you've done by breathing into those thoughts.
Lastly, focus your breath on your unborn baby. Breathe into your womb, giving your baby rich oxygen and life force.
Take your time breathing into places that need healing or more life force. When you are finished, slowly open your eyes and return to the outside world.

Read more: http://www.parentingweekly.com/pregnancy/breathingspace/vol35/pregnancy_meditation.asp

Blue Light Breath

Sit in a comfortable position with your spine straight as an arrow. Close your eyes and begin breathing deeply.
Notice which nostril is most open and exhale as if only through that nostril. Imagine a blue-white light flowing in that nostril and reaching the point between your eyebrows. Exhale the same blue-white light out the most open nostril.
Now shift the breath to the other nostril. Imagine a blue-white light as you exhale, focusing on the more closed nostril. Inhale the blue-white light to the point between your eyebrows and out from that point again. Repeat the process until both nostrils are fully open.
Next, focus on breathing in the blue-white light through one nostril, to the point between the eyebrows, and out the other nostril. Then switch on the inhale, breathing in through the one you've just breathed out and exhaling through the other.

Finish the meditation: http://www.parentingweekly.com/pregnancy/breathingspace/vol32/pregnancy_meditation.asp

Meditate on Reality

Find a comfortable space and position. Begin breathing deeply through your nose. Slowly draw out each breath, gently allowing the air to fill your body and then escape.
Close your eyes.
Listen to the sounds around you, whatever they may be. Listen to barking dogs, passing traffic, people talking. Listen to the sounds going on inside your body. Listen to your stomach's grumbling, your heart's pumping beat, the blood running into each part of your body.
With these sounds, create a mental image. Imagine each sound as a wave on the surface of a large lake or ocean. But instead of water, it is life. As you go deeper into the water, your breath becomes free and deep. This is the ocean of your life, where you exist and move.
Breathe in deeply, hold it for a moment and as you exhale, plunge deeper into the ocean of life.

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http://www.parentingweekly.com/pregnancy/breathingspace/vol14/pregnancy_meditation.asp