12dpo and temps are very stable. I am on progesterone however my chart has NEVER looked like this and I have been on progesterone for the past 4 cycles. Bbt starts a steady decline after 10dpo in previous cycles. Bfn this morning. I have a 13 day lp.i feel like I should have had a bfp by now.
Chart looks good! I wouldn’t worry. If baby implanted at say 10dpo it takes 2-4 days to get enough hcg for a BFP. So you could get it as late as 14dpo.