Could it be an early sign?

Kelsey • Mommy to a beautiful 5 year old little girl and handsome 3 year old little boy. Another sweet Baby boy coming in May!
I'm only 4 DPO, so I know it's way too early to feel most things. I'm just feeling super crampy it feels just like period cramps. My AF isn't due for another 10 days. Could it be possible that this is N early pregnancy sign or from implantation?