11DPO and get AF the day after. Day 1 of AF is light, and Day 2 is rather heavy. This month, I spotted 11DPO, got a light AF the next day, the day after that, and it's now Day 3, and it's just moderate. My BBT went up the day AF came to 98.55, dropped to 98.31 on Day 2, then to 97.91 on Day 3. My coverline is 97.8. If I have AF, then why hasn't my temp dropped all the way down? Has this happened to anyone else? We are TTC.
Sometimes the bbt doesn't drop down until closer to the end of AF, that's what happened to me. I would just keep an eye on it and see what happens with it so you will know for next month what to expect. Good luck!