IUD pregnancy?

I had cramping (not light cramping, full on cramps) three days before my period is supposed to start but I had no bleeding. Is there a way I could be pregnant? Or if someone was pregnant, they would get the bleeding with the cramping for sure?

Update: I just went to the bathroom and noticed light pink spotting when I was done. I am supposed to start my period tomorrow so did it just come early or is this the implantation bleeding two days after the cramping?

Lol update again: my test was negative🙃