BBT chart! Any insights would be helpful!

Lisa • Sat, Jan 28

Hi ladies. This month I have started to temp consistently. Every morning before getting up at 6:15. Anyway, just wanted to see what you thought to my chart? Today at 6dpo I had a good dip, is this a good thing? I know it's too soon for AF but wondered if anyone else has had this or if it's a normal monthly thing?

I know you can get a second surge of oestrogen half way through the leuteal phase, maybe that's what it is!