Implantation cramps?

Tatiana

I'm 8dpo (<a href="https://glowing.com/glow-fertility-program">IUI</a>) and have been having cramps all day. It feels like AF cramps but a lot lighter.. milder. Anyone had implantation cramps like this? AF is 6 days away and I can usually feel cramps a whole week prior to AF but I usually have really bad cramps and these aren't like that. Any opinions? I have not started testing yet. I have not noticed any cm.