I don't have an image to post at the moment, but I can get one if needed.

Just a bit confused... I had a normal chart, temp was low, then dropped and then went up, the way you would expect when ovulating. All was good and as expected.

Then on 6 dpo, the temp dropped back down and was on the coverline. I didn't think anything of it, but then today (7 dpo) it has dropped below the coverline and is now at a pre-ovulation temp. It was rather chilly last night, but I wasn't cold so surely that wouldn't affect it?

I don't get it?

(Very unlikely that I am pregnant btw, as we had sex 10-11 days before ovulation, and we are not trying this month so haven't done it again)