I'm 29 weeks with twins and my uterus is measuring 38 weeks. I'm always uncomfortable and it hurts…

I'm 29 weeks with twins and my uterus is measuring 38 weeks. I'm always uncomfortable and it hurts to lay down to go to sleep😓 I want to keep them cooking as long as I can but boy am I excited for when they finally come out. I'm so ready to have my body back to itself😣