Feeling very off.. bfn's.

Caitlin • TTC for 2 years since our early loss. I have 1 living child and 1 angel baby. My husband is the best. Praying for our rainbow!
I've felt very off lately. I've tried to stay away from symptom spotting for nearly a half of a year because it just stresses me out. But the past week my back started hurting constantly. So I bought a big bottle of cranberry juice thinking it was maybe my kidneys. It didn't help. Now (tmi) my boobs/nipples are so sore and sensitive. I took this test yesterday with fmu and it was negative. I was 3 days away from predicted af. I didn't test this morning because I convinced myself it's probably pre-AF symptoms. Just needing some positive vibes and prayers at the moment. Ty!