Just wondering if anyone can shed any light here?
I am 4 days before O, and had BD last night and night before. This afternoon I have had light bleed, but very dark like "old blood" if there is such a think. I also got a very sharp uterine pain (like what I sometimes get at O). I would have thought it was implantation (if I was ovulating earlier), then it would be fresh, bright red blood?
Any ideas?
