Missed period & spotting

Hi ladies, please ignore my wacky chart - my cycle has been so crazy this month. I just want to know if by looking at my temps, any of you think I may have ovulated on CD19 or even CD22. At first I thought I ovulated on CD14 (which is when I normally ovulate) as did Glow but now everything has changed. I am now what I thought to be 8days late and have had spotting since the day I thought AF would be due (18th Oct). Could I have ovulated late and this spotting be implantation?

Would appreciate any help!