DOsHip Openers: Poses like pigeon, warrior II, triangle, ardha chandrasana, baddha konasana, and knee to ankle will help create the flexibility that can make giving birth easier.
All Fours: Positions like cat - cow help get the baby into the optimal position for birth (head down, back to your belly). This pose can be used to try and turn a breech baby in later pregnancy, if recommended by your prenatal care provider.
Standing Poses: As your belly grows, begin to widen your stance in standing poses. Take your feet at least hip-distance apart to make room for your bump, especially if you are bending forward. This prenatal sun salutation offers a nice alternative during pregnancy.
DON'TsOver-stretch: The body produces a hormone throughout pregnancy called relaxin, which is intended to soften your inflexible parts (like bones and ligaments) to make room for the baby and prepare for birth. This softening of the ligaments can make them vulnerable to over-stretching. Try to avoid going further into poses than you are accustomed because a pulled ligament is a serious injury that takes a long time to heal. Be especially aware of your knees.
Twists: Deep twists from the belly, such as ardha matsyendrasana, compress the internal organs, including the uterus. Instead, twist more gently from the shoulders, or take an open twist, which means twisting away from your forward leg so that your belly has a lot of room instead of getting squashed.
Jumps: Jumps pose a slight risk of dislodging the fertilized egg from the uterus and should be avoided early in pregnancy. Later on, you probably will not feel like jumping.
Fast Breathing: Any pranayama requiring breath retention or rapid inhales and exhales (such as Kapalabhati) should be avoided. Begin to practice birthing breath instead. This technique has a direct application to the birthing process. Learning to focus on the breath and use it to keep you anchored in the present moment may be the most useful thing you learn from prenatal yoga.
Inversions: Turning yourself upside down doesn't pose any inherent risk to your baby, but you want to avoid falling. If you are not super comfortable with inversions, this is not the time to work on them. More experienced yogis with established inversion practices can make the call on which inversions to do, but should be mindful that the expansion of the belly changes your balance. Use the wall or avoid inversions if you don’t feel like doing them. You can always substitute legs up the wall in a class setting.
Backbending: In general, avoid deep backbends, like full wheel pose. If you performed this pose easily before the pregnancy, you may continue to do it in the first trimester if it feels good to you.
Abdominal work: Poses that are abdominal strengtheners, such as boat pose, should be avoided. Softening the abs a bit allows them to stretch more readily, which may help you avoid conditions like diastasis recti.
Lying on the Belly: Poses in which you lie on the belly, such as cobra, can be practiced in the first trimester as the fetus is still very small. Later in pregnancy, these poses should be avoided, and can be discontinued at any time if they cause any discomfort.
Lying on the Back: In your second trimester, your doctor may advise against lying on your back for long periods, even encouraging you to sleep on your side. You can start doing savasana lying on your left side as early in your pregnancy as you like. You may want to use blankets or bolsters for support to make yourself comfortable. If you eventually cannot get comfortable lying down, you can also sit up in a cross-legged position.
Bikram Yoga/Hot Yoga: Raising your body’s core temperature is not recommended during pregnancy; therefore, hot yoga should not be practiced. Remember, yoga is about being flexible in the mind as well as the body, so Bikram devotees should use this opportunity to explore other yoga options.
Want to know more? Sign up for the Prenatal Yoga Email Course, visit the Introduction to Prenatal Yoga page, or use the trimester-by-trimester guides: First Trimester, Second Trimester, and Third Trimester.