A study published in Clinical Endocrinology finds evidence that low levels of the thyroid hormone called thyroxine may be associated with more posterior positioned babies. While the 3 Principles are often effective in correcting malposition, there are occasional women whose babies do not respond, or respond in the amount of time the mother has after finding out her baby is posterior. This may be helpful information. In addition, it may be helpful to take a chelated iodine supplement in pregnancy or have your thyroid levels checked in pregnancy.
The first thing to do while pregnant - any time during pregnancy is ok - is to work on bringing your body into balance. Don't make that sound hard. Just do the things on this list.Mind you, if there is any medical reason, ask your doctor or midwife before trying these exercises.
Here are 6 things you can do everyday - today! - to get into balance over time.
2. Move symmetrically, don't twist to view a computer, or treat your client. Balance by trading sides.
3. Sift with the Rebozo - ask a friend to help with the Rebozo scarf
4. At least one forward-leaning inversion every day - see the one I mean
5. Pelvic exercises - ask a physical therapist, yoga teacher, or provider
6. Drink plenty of fresh, clean water and eat nutritious foods that nourish your muscles and ligaments. Have the required amount of Vitamin D, E, C, and minerals such as Selenium, Magnesium, Calcium and Iodine. Fatty acids and Omega oils help, too, by helping your hormones.
If you aren't getting results from crawling or doing pelvic rocking on your hands and knees, its because you need to bring your womb into balance first! First things first! Read The 3 Principles .
There are physical symptoms that the baby may not be in an ideal position, as early as 34 weeks of pregnancy. Discomfort may begin even earlier if the mother's ligaments are really tight.
Many people suppose that a pregnant woman will have back pain if her baby is posterior.
Back pain is not a reliable sign that the baby is posterior.
Donations to Spinning Babies usually help pay for the cost of a website with no advertising. But I must confess, I sent a little money to say thank you for this very smart and well edited video.
Gravity-friendly maternal posture is the 2nd Principle of Spinning Babies. Here are some suggestions for pregnancy. These postures can also be used in labor.
Information about fetal positioning is given freely throughout the many articles
of the Spinning Babies Website. Perhaps this information made a difference in your birth. Perhaps you refer the families you work with to Spinning Babies. Please donate if and when you can. Each occasional donation is a
big boost!
Start here. 
Gravity-friendly maternal posture is the 2nd Principle of Spinning Babies. Here are some suggestions for pregnancy. These postures can also be used in labor.