Anyone TTC experience this?

So I'm usually pretty regular..I started what I thought was my period but it didn't last long and was extremely light..which is weird..started 11/21-11/23..took a test 11/25 neg..took another test 12/1 still neg..I'm just mainly wondering what Implamation bleeding is?..I've googled but haven't quite figured it out...everyone's pregnancy and menstruals are so differen!! lol..anyway, has anyone else had this happen?! Could this really be it!? Could it FINALLY be MY turn?!?!!?!? =) =)