Help please - BBT

Sarah • First baby Thomas Declan 💙
Need some help with charting and when to expect AF
Glow had my ovulation date out by a few days. With my temps fertility friend worked it out as 7th feb.
This is my first month temping but I isually have a 29/30 day cycle meaning I should expect AF at the end of this week (hopefully not thou) but fertility friend has changed it to next week meaning I would have a 33 days cycle or something. 
I know these changes happen when fertility friend doesn't know your cycle yet etc but how will I know when to test? If AF doesn't show at the end of this week should I bother testing or wait? 
Any input on this or any tips at all with regard to my chart would b appreciated 🌠🌠🌠🌠