Okay mommas, i need advice!😫

Earlier this morning, around 10:30 or so, me and my SO had sex. About an hour or two later, we went walking & we walked for about 25 minutes.

Now, I'm having a constant cramping feeling in my lower back and lower abdomen! I'm pretty sure it's not contractions, because it's not going away, it's just staying.. it does seem to get a bit worse feeling here and there but not much and mainly in my back.. I'm 38 weeks & 5 days.

Anyways, my question is, could I really just be this sore from it?! Or could it actually be contractions?

Is there anything I can do to ease them? Maybe a warm bath? 😫

To add to this post - the pain does get a little worse when I'm walking/moving around!