Implantation, can it cause an ache

So here is a question, I ovulated day 13 of a 28 day cycle and online forums talk about implantation and how you can have a little bleeding etc but I wondered if you can get an ache too? I'm now 6 days past ovulation and I have an ache but it's 8 days before aunt flow is supposed to get here and I usually only get period cramps 24 hours before and it doesn't feel like that. All opinions welcome