Back labor?

Hannah

I’m 39+3, at my last appointment I was 75% effaced and not dilated at all. Since then, I’ve had spontaneous abdominal cramps, and a constant back ache for about 2 days now. Every time I feel the cramps, my back tightens up and hurts even worse than before. Any way I lay or sit or stand, it still hurts. I haven’t lost my mucus plug, but I constantly feel pressure like I need to pee/sometimes poop and the cramps aren’t close enough to consider labor contractions. Could this be back labor or just normal uncomfortable late pregnancy pain? 🙁