Long shot

I just took a win dodo hcg test and if I look way hard I can see the slightest line. It could be the control line no clue. I had a miscarrage 2.5 weeks ago. I have had all of the hcg out of my system for 2 weeks at least. I don't no if I have ovulated my body is so out of control. I got my opks about a week after my miscarrage. It seemed like the opks were going the wrong way. Then I had an almost surge 2 days ago but nothing what do you guys think. Control line? I hate not knowing my body now.