Ok tmi but i need answers/opinion

My cycle was supposed to start on 12/26 but came on the 24 instead only bleed a little enough for one or two pads. Its was pink and brown. Now I have sore breast and pressure in my vaginal area nausea and back pain and dull pain in my rib cage. I took a test today but it was negative. I'm supposed to be ovulating today."According to Glow" Could my glo be glitching. Or could I be experience a mental glitch. In hoping too hard that I'm pregnant. Crazy part is usually my cramps are "woman down" "grab a pillow, and a pill" But if I didn't go release myself I would have never knew It had came early. Please if anyone could help.