heavy period after 6 days late & HORRIBLE back pain

Aubree

My period was 6 days late , thought I was pregnant because I’ve been trying to concieve , took a test it was negative… and started my period this morning & my back has been aching for days but since 8am my pain has been so unbearable . I took a HOT shower & 2 pain relievers & still in really bad pain. I’m also very nasheous. ANY ADVICE GIRLS ? 🥺🥺🥺 please lmk !