well, Im on 7 dpo, due for af in 5. My temps did something new this cycle. I got a drastic jump at 5dpo after my usual dip on 3-4dpo. then today it fell again. Ive not had my cycle do that before, and this is the fourth charted cycle. Could it be an implantation spike instead of the more common dip? It would make sense since my body seems to do EVERYthing backwards lol