4 DPO and cramping?

Hey guys! Question about implantation after ovulation. I ovulated last Thursday and had all the cramps leading up to it. After ovulation, cramps went away and I’ve felt fine the last few day. Today I’ve started having cramping down low in my uterus area. Feels less intense than the ovulation cramping and on par with period cramping (though my period isn’t due for another 10 days). Is it too early to be implantation cramping? I didn’t think that could happen just 4 dpo.