Brown and pink discharge after iui?

Brittany • Baby Mason is due on February 7th, 2017 ❤️ baby #1

So the day after I had my iui, when I wiped I could see light pink and had severe cramping. 2dpiui, no cramps, but I have light brown thick and creamy discharge and I am extremely tired. Is the colored discharge normal right after tge iui, or is it a bad sign?

I called my nurse, and she said it could be implantation bleeding, but I feel like it's way too early for that...

Please help.