Is this implantation or AF?

I’m actually not sure when I ovulated. I had a sharp pain on my left side where my ovary was but thats it really (on the seventeenth). Had a bit of spotting today with no cramps. I thought that AF was late but she isn’t... I’m normally 26 days but this is CD 30 and I think it’s a long cycle for me (longest was 40 days, shortest 22) and I also think I ovulated late this month because of the cramping on the 17th. It’s the 1st and it’s pink and has a lot of mucus with it.