<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hi im 4 months pregnant and been have really sever hip pain only in my left side, went to my gp and she said that this is normal and i mentioned SDP and the possiability of relaxin causing this and i was told that is impossiable as you only realese relaxin in the last trimester only can she be right as i am in so much pain  <response>: Hi, I understand your concern. Relaxing ointment is released in early pregnancy, it increases in first 3 months as placental pre-placental tissues start adding to its production. So the cause of hip joint pain in even 4th month of pregnancy is mostly Relaxing hormone. However stress trauma old arthritis can contribute to it. Relief is mostly by light yoga exercises walking exercises along with calcium vitamin D supplementation. Thanks. 