Implantation 9dpo

[abcd77]

Hi all,
yesterday at 9 dpo I fet a sharp pain really low for a couple of minutes. I had some more "normal cramping" since then too. Colud this be implantation?
I'm also charting, but I'm not sure if this slight dip at 9 dpo means anything.
What do you think?

If I recall from charting a dip then a climb is a good sign, hope that temp keeps rising, fingers crossed!