Hi Sammy,
It's just my opinion but I think if you have those two symtoms you probably are about to O or have just O'd! O pain and slippery Mc is a pretty strong indicator.
It sounds pretty convincing to me. I think I read that you can get O pain for a couple of days and that it can indicate that O is coming anywhere from right away to 24 hours away.
I do FF chart but some months I think FF is out by a day or two.
Is it possible anything could have caused you to have a higher temp in the first part of your cycle? A cold or other illness? Or something in the last few days that could be keeping the temps low, ie waking up cold or mouthbreathing?
I guess you'll have to wait a few days to see if you get a coverline. Are you getting a CD21 test to check?
good luck!!