On my period but tested positive for ovulation?!

Allie

Can someone explain this to me... I got my period like I normally do every month. A couple weeks later I start bleeding again. It’s very light but enough to say it’s a period and not just spotting. Here’s a picture of my calendar.

So today, after bleeding lightly for the past 3 days, it completely stops. I decided to take a ovulation test, and in less than a minute it shows up positive. What is going on?? I’ve never experienced this before.