HI, Thanks for the query. I understand your query. - In late months of pregnancy the body starts preparing for child birth..in this attempt,the pelvic ligaments get relaxed/ loosened .. making them more stretchable. At the same time.. baby because of it s own weight starts desending down in pelvic cavity.. thus stretching the ligaments .this causes pain/ feeling of ripping apart of pubic bone. - Calcium & vitamin D deficiency increases the symptoms. And lack of pelvic exercises to strengthen the pelvic & back muscles adds to the symptoms. -To manage .. Your doctor may add mild pain killers, calcium & vitamin D as per need / relaxation techniques & exercises for strengthening back & pelvic muscles can be learnt ( under expert guidance )even at this stage to manage the pain facilitate bearing down at child birth Thanks.