Opk help

Steph

So I still don’t really get when I could ovulate, the app says Wednesday and I got my pos tonight even though the app is insisting it’s negative, like I just don’t get it. I’ve read online and people say they haven’t o till 5 days after their first pos and I don’t temp to know but we are trying to get pregnant with our rainbow baby as we miscarried in Oct this year, I keep feeling like their is something wrong with me