12 days past IUI

I did my second IUI on May 21st. I took this test this morning at 12 days past IUI It appears negative to me. Should it be positive by now if I were pregnant?

With my first IUI I got a positive hpt at 11 days past IUI so I can't help but feel that this one did not work.

2 days ago, 10 days past IUI, I was sooo bloated, lower back ache, and had cramping off and on. The next morning I felt fine. Today, back to being bloated. I thought it was implantation, but now I'm thinking it's AF😞

Opinions??