Pregnancy confusion!!!!

Ok so I miscarried in mid March. A week After I stopped bleeding I took a pregnancy test just to be sure and it was negative. I was pretty sure I ovulated a couple weeks after that. But my period hasn’t come yet. I took a pregnancy test this morning and it was positive but the test line was waaay darker than the control line. I thought maybe it was invalid? So I googled and every page I went to said that a darker test line means I’m VERY pregnant. But I shouldn’t be “very” pregnant if I had ovulated just a couple weeks ago right? So I’m wondering if I even miscarried? I didn’t go to the doctor but I am making an appointment today, just wanted to see if anyone has anything that could help me.