Cramps and back pain at 12 Weeks

Hi mummies, I am at 12 weeks now and my insides have been hurting badly. I’m having cramps (similar to menses cramp) and my rib cage has been hurting. It feels like my whole internal organs are compressing. I understand that my organs are starting to shift to accommodate the growing baby but is there anything I can do to alleviate the pain? At times the pain is very sudden and will leave me breathless. #pleasehelp