Watch Prenatal & Postnatal Yoga for Free: How to Stream the Movie Online at 123Movies. . Both during and after pregnancy, yoga is a perfect way to firm your body, build strength, and gain flexibility. These two yoga practices, filmed in a serene garden overlooking the Pacific Ocean, are also a wonderful way to maintain emotional balance and reduce stress during the exciting and often hectic times surrounding the birth of a child. In the prenatal sequence you'll practice safe and simple movements intended to strengthen and tone your body at any stage of pregnancy, while providing relaxation that will help create a luminous space in which your baby will thrive. The postnatal sequence is designed to redefine your body, restore your energy, and help you reconnect to yourself and your own wellness.