Is this in my imagination?

I'm 11 DPO after an IUI. Tested trigger out yesterday on 10 DPO and 11 DPT. This morning's test looks like this.

Been having period like cramps since yesterday. If that was implantation, should I be expecting to see a clear line already? The reason I'm saying this it's because something similar has happened to be 3 months ago...ended up in a chemical. I'm afraid it might happen again.