My period is different after IUI

Desiree

I did

<a href="https://glowing.com/glow-fertility-program">IUI</a>

2 months ago and after that I did get my period but bled very little and in 3 days it was gone, I usually bleed a lot more and it last about 4 days. Is it normal or I might be pregnant with low hcg hormone? The home test is negative

Thanks