back/hip pain

Mary
Hi all,
I have endo, so period pain isn't uncommon.  Usually around my hips and back a few days before I start.  This time it started 1-2dpo and has been INTENSE...like can't walk normal intense.  I just came off the pill in October and this is the first bad cycle, if it continues I'll be calling the gyn.  In the meantime...has this happened to anyone else? Did it turn into af or BFP? Anything that helped ease it?  I've been doing yoga, hot baths, heating pads, ice, and a tens unit.