Taking oral progesterone and bbt

Julika
I am taking oral progesterone and it does NOT affect my temps at this low dose (was at higher dose cd12-17) so I'm curious if its enough to hold off af long enough for implantation. I had ultrasound at cd11 and cd25. I know I did not have follicle large enough to ovulate early on so earlier temp spike must have been higher dose of progesterone. My cd 25 ultrasound indicated i should ovulate around cd30. Frustrated with temp drop this morning. Dont tell me af is on her way.