<s>[INST] 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 [/INST] 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. </s>