Answer: Back pain is often caused by pregnancy hormones relaxing your ligaments, the tough tissues that connect your joints. The weight you naturally gain and changes to your posture as your bump grows can add to the problem. You're most likely to feel pain in your lower back. But you may also feel discomfort in your upper back, shoulders, between your breasts, and in your ribcage. Sitting or standing in one position for a long time may make your back pain worse.
If you exercise regularly, it's fine to continue, but listen to your body.
Gentle exercise, such as walking and stretching, may relieve your stiffness and pain. But don't force yourself if you feel pain, as you could strain your ligaments further.
Gentle massage can ease backache, but the effects tend to be temporary.
To support your back and prevent pain, fold a thick towel lengthwise and place it perpendicular to your body at the point on your waist or you can use pregnancy pillow.