Too early to be AF

Kendra • 32. In a relationship ❤️. One son, 16 🫶🏽.
Ok so I'm on cd 22 and I'm having cramps as if AF is coming. My cycle is between 28-32 days. So this would be toooo early to be AF. But I'm only 5dpo so I'm assuming it's too early for implantation. Opinions? 😩