Pregnancy is a period of many hormonal, anatomical and physiological changes in order for the body to adapt to increasing physical and metabolic demands, especially to the growth and development of the child and preparation for childbirth. Changes in the body posture of a pregnant woman are the result of musculoskeletal adjustments. An important change in the locomotor system associated with pregnancy is increased ligament laxity, weakness of the ligaments due to increased levels of the hormones relaxin, estrogen and progesterone. The increase in the body weight of the pregnant woman and the constant growth of the uterus lead to important changes in the muscles, joints and posture. The expansion of the uterus anteriorly into the abdominal cavity results in a change in the center of gravity, due to which a pregnant woman observes lumbar lordosis and rotation of the pelvis in relation to the femur. Important adaptations to preserve the perception of the environment and spatial orientation and to compensate for lumbar lordosis are an increase in flexion of the cervical spine, internal rotation and adduction of the shoulder girdle, and hyperextension of the knees and support on the heels. Because of these changes, pregnant women experience lower back pain. Physiotherapy assessment of low back pain in pregnancy according to the SOAP model consists of subjective and objective assessment and implementation of clinical function tests. Clinical functional tests performed to detect low back pain in pregnancy are the Straight leg raise test, Bragard test, Sicard test, and Femoral nerve tension test. Physiotherapy intervention is based on relieving pain, strengthening the musculature of the abdominal wall, back musculature and the musculature of the pelvis and pelvic floor, educating the pregnant woman on the proper performance of activities of daily life and protective positions, and on the prevention of low back pain. Exercise plays a very important role in the physiotherapy approach to low back pain. Stabilization training for the spine works to reduce the load on spinal structures during daily activities and helps maintain optimal neuromuscular control and coordination.