Call the DR???

Crystal✌ • Mother of 2 girls and 1 stepson. Trying to conceive our first child together. TTC since May.
I'm 38 weeks and 2days. Friday I'm having my membrane swept, and next week will be induced if that doesn't work. I woke up last night and this morning with really bad pain in my lower stomach. I almost couldn't walk to the bathroom it hurt so bad! My stomach has been EXTREMELY tight all day and the baby isn't moving as much as usual. Just slow strong movements occasionally. This is my third child and I've never felt this before... Should I call the Dr or is this just my body preparing for labor?