Started cramping today but they're strange

Hayli
I've been sorta having cramps off and on for the last week but today when it started it feels strange. Like it's really tight and stretching. Kinda on the uncomfortable side more than anything. I was just curious to if this could be I'mplantation cramping or what!? My period is supposed to start August 4th. Been TTC. I'm bout 4 or 6 dpo. Any thoughts ladies!?