If I felt cramping (praying it’s implantation) on Saturday and Sunday when should I test?

I know it doesn’t mean it was implantation, but I had cramping that lasted 2 days a week after my <a href="https://glowing.com/glow-fertility-program">IUI</a> so hoping it was implantation. I have a blood test scheduled on Monday but just wanting to test early at home.

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