Please help!

Would love some advice please...? My ovulation date keeps changing - Glow said it was originally on CD 16 then it changed to CD 22. On Fertility Friend it was originally CD 22 and now it has changed this morning to CD 26 meaning it thinks I will have a 41 day cycle when last month it was 31 days and I ovulated in CD 18...

When do you ladies think I ovulated?! I was originally expecting AF this weekend which would be in line with the last few months but now I have no idea when to test/expect AF?!

Thanks so much for looking xx