First time mom here, need answers!

I'm almost 35 weeks and when I sleep at night I'll wake up in the middle of the night with extreme pressure/cramping. Cant even tell the difference to what it is but it wakes me up every night!! I had a non stress test done because I told my doctor what I was feeling but everything came back looking normal and such! Did anyone else experience this? It's so hard to explain and I'm worried but the doctor said I just need more support at night and I've tried a pregnancy pillow, a belly wedge, and a belly band!!! 😰