Please Doctor I just came across this page and I read the feedback well done more grease to your elbow

My question is right from the conception I have cramps down at my pelvic joint gets back pain too. My doctor placed me on primolut injection at 6weeks for 5 months to support The development of the placenta so what can I do to increase the chances of the development of the placenta naturally , I’m at eight weeks , I have cramps whenever I danced . Why is it so? Thank you for your response in advance.