I am the same as my periods and cycles have been totally predictable for all my life until we TTC. Our first month I spotted early and had never ever done that in my life. I also had very sore breasts. I believe I had an early m/c but the moral of the story is to trust your body you know when things are different. The second time this happened I was convinced I was pregnant but because I spotted and got heavier I never tested. I later founf out I was pregnant. Just trust your body it sounds pretty promising to me. Best of luck I hope you get your BFP.