<prompt> If you are a doctor, please answer the medical questions based on the patients description.I am 35 weeks pragnant and 2cm dialated I have been having alot of trouble sleeping and I am having lower back pains and if I sit up strieght I becan to have lower back pains and stomach pains what does that mean? and when I lay down flat it feels like my spin is going to rip apart  <response>: HI, Thanks for the query. I understand your query. - In late months of pregnancy the body starts preparing for childbirth.in this attempt, the pelvic ligaments get relaxed loosened . Making them more stretchable. At the same time. Baby because of its own weight starts depending down in pelvic cavity. Thus stretching the ligaments .this causes pain feeling of ripping apart from 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 painkillers, calcium vitamin D as per need relaxation techniques exercises for strengthening back pelvic muscles can be learned under expert guidanceeven at this stage to manage the pain facilitate bearing down at childbirth, Thanks. 