First time using ovulation test help?!

First time ever <a href="https://play.google.com/store/apps/details?id=com.glow.android">tracking ovulation</a>. This is my first test I just took. Looks positive but just had my period end a week ago & not supposed to ovulate until next weekend. My cycles are pretty irregular though & glow always has to recalculate. Opinions or anything else to know about testing.