My hips went out of alignment a month ago really bad, it was excruciating! so, then i started a week ago putting a pillow in between my legs when i sleep but i wake up with sore hips and a sore lower back. is that okay?

There appears to be a complex adverse interaction between your lower back and hips. This needs a full medical exam, imaging, and even blood tests to better understand. Physical therapy may be the answer. Suggest seeing a physiatrist or an osteopathic physician. Your problems may be secondary to sacroiliac dysfunction and wearing an SI Belt may be a temporary solution.