Back pain and leg pain's are common in pregnancy. If it's unbearable please consult your doctor. Apply pain relief cream and also hot water bag can help. Eat well balanced food and do walking.

For back pain use belt..it is easily available in 1st cry and mither care shops..and for legs..u can do some yoga..i wish i could tel u live..but there are physiotherapists available..unse contact karke exercises ka pata kare