Mama, please contact your OB or go to the hospital today para ma-check properly, lower back pain + mucus plug discharge at 35 weeks needs professional attention right away, hindi ito something to wait on. I know it's scary and uncomfortable, but you're doing so well reaching this far in your pregnancy, your body is working hard. The doctors will know exactly what's happening and what to do next. Sending you strength, and praying everything goes smoothly for you and baby. You've got this!