Anyone have severe implantation cramping?

Hi everyone. I’m TTC and know I ovulated July 16. I became incredibly fatigued about five days later for three days. Then 9 days after ovulating I had SEVERE cramping. Like on the floor, fetal position, looked white/green color in my face. Then chronic cramping the next three days, kind of functional but felt like someone had beat me up from the inside out. Called my midwife when cramping started, they think just see what happens. No bleeding. Am feeling tired but better today (12 days after ovulation). It would be great if this was implantation but because of the severity of it am a bit concerned and anxious. Any thoughts?