After obtaining written informed consent, All healthy  pregnant women     of age  between 18 to 40 years from first trimester  till delivery attending  obstetric outpatient department will be included in the study. Their demographic and socioeconomic profile  will be recorded. History of previous low back pain, spine surgery and trauma,  will be ruled out. All pregnant women will be provided with a diagram projecting the anterior and posterior view of human body with marked areas such as  low back , right and left pelvic girdle  and symphysis pubis . if they have pain they will be instructed to mark the area  of pain. If  the patient is having pain, detailed evaluation of pain  using numerical rating pain scale, aggravating and relieving factors,  limitation of activities, sleep disturbances will be recorded.  Atleast 2 of the following   physical examination test  should be positive  on the side of reported symptoms: posterior pelvic provocation test,  Patrick’s test, active straight leg raise test and modified Trendelenburg test. If patient is having pain, she will be sent to pain clinic for further management. All  patients will be followed up till their delivery.