Pelvis pain 40 weeks

Been having so much hip pain and pelvis pain and it’s like I’ve pulled a muscle down there! I do get little cramps but no tightening! This pain can be so uncomfortable to walk to sit to lay! He is 2/5ths down! Should I go to the hospital to get checked or wait I’m a FTM and all this just has me so confused do contractions have to hurt so bad?