I'm currently on cd5 and af has been finished since day 3 which is not like me (usually 2 heavy 2medium then 2 light and finished by day 7) last nite I had cramps which again isn't like me to them at the end of af.
9dpo I had some cramp followed by some backache then started af on cd 27 and I think I ovulated 13/14.
Is it too late for implantation?