What does implantation feel like?

Rachee
Idk if that's a stupid question? I got off my period 11 days ago and today when I use the restroom it feels like I'm gonna start my period again, not cramping. But right before I start I can always tell. And I didn't know if it could be implantation. I have one child but I don't remember if I felt implantation, because he wasn't planned so I wasn't really paying attention to anything. Can someone help me out. Mind you I have very irregular periods and so I really don't know when I ovulate.