IUI understanding

Emily

I had my <a href="https://glowing.com/glow-fertility-program">IUI</a> Done on November 30. Last Wednesday I thought possibly I had implantation because of the type of pain that I had in the middle of the night. Today I was supposed to get my period and now I took a test and it was a negative. Any thoughts on did I take it too early or am I just not pregnant?