Temp dip but still a chance?

[claireb707]

Ok so I'm on cycle 5 of ttc, the last 4 months as soon as my temp starts dropping (within 2 days) my period arrives. I am now 13dpo, had loads of symptoms earlier in the week but not much since and the last 2 days my temp has gone back up 🧐

Is it still possible I'm in with a chance?
1st pic is this month, other pics are last few

To add, the 3 days where my temp really dropped, I'd had less than normal sleep like 4 /5 hours instead of 6 and I had a lot on my mind (was my uncles funeral yesterday - sudden death, we are getting our kitchen done at the moment and I had peak activity on a work project) could the dip not really be a dip?