What does implantation feel like?

zilla

Im about 9-10 dpo and iv had a few symptoms including some cramps but very mild ones. But this afternoon i had one that lasted about 20 seconds.

I wouldnt know what implantation feels lile but could that have been it?

Also...does everybody get implantation spotting? Havnt had any if it is that, thats why i ask.

Af is due on the 31st and im trying to hold out until then before i test