It really doesn't matter. Sleeping or laying on your back for prolonged periods isn't the best choice, the left side is often recommended, but certainly if you can't sleep on your left side for other reasons, the right side is fine.
I've never heard that it's bad to sleep on your right side. I know it is perfered to sleep on your left but, there is nothing wrong with sleeping on your right. I usually end up on my right side but I start out on the left. It would be impossible I think to sleep on one side the whole night. Especially when your 33 weeks and huge! There is just to much pressure.
The Content on this Site is presented in a summary fashion, and is intended to be used for educational and entertainment purposes only. It is not intended to be and should not be interpreted as medical advice or a diagnosis of any health or fitness problem, condition or disease; or a recommendation for a specific test, doctor, care provider, procedure, treatment plan, product, or course of action. Med Help International, Inc. is not a medical or healthcare provider and your use of this Site does not create a doctor / patient relationship. We disclaim all responsibility for the professional qualifications and licensing of, and services provided by, any physician or other health providers posting on or otherwise referred to on this Site and/or any Third Party Site. Never disregard the medical advice of your physician or health professional, or delay in seeking such advice, because of something you read on this Site. We offer this Site AS IS and without any warranties. By using this Site you agree to the following Terms and Conditions. If you think you may have a medical emergency, call your physician or 911 immediately.