Pain?

I’ve been having pain like burning/tightening in my vaginal floor (I’m assuming), & excessive back pain. I’m having a little bit of cramping like feeling in the right side of my abdomen. I was scared at first that it was a late miscarriage or something as this morning my baby was not moving, but he is currently very active.

Does anyone have any tips to relieve this pain or know what’s causing it? I’m a ftm & 22wks.