The New York Times recently published an article with 12 poses that you can do in 12 minutes, to increase bone strength. Well, this applies to pregnancy and postpartum as well!
The 12 poses are: Tree Pose * Triangle Pose * Warrior 2 Pose * Side-angle Pose * Twisted Triangle * Locust Pose *Bridge Pose * Supine Hand to Foot 1 * Supine Hand to Foot 2 * Straight Leg Twist * Bent Knee Twist * Corpse Pose
And here they are for you, in video format. Enjoy!