Latham is a maternity lifestyle maven, wellness & birth coach/doula, yoga teacher. Her practice provides support to pre/postnatal women along their journey to motherhood offering culinary and nutritional services, yoga, and birth coaching services. www.mamaglow.com
If you have a bump you place your leg on an angle that allows you space and elevate your upper body on pillows, forearms or a bolster. Also you can get the same benefits by sitting in a chair, on the edge and crossing your leg over to the knee- and leaning forward. That really opens your outer hip.
My favorite pose to prepare for labor and birth is the goddess squat- which helps strengthen the legs, outer hips, and engages the pelvic floor. During a squat your pelvis is 30% more open.
It's generally advised that moms allow themselves to heal for 6 weeks post birth. But you should check with your doctor first before starting back with your yoga routine. A gentle practice is a great way to start back.