help! ovulation testing!

Mandi • 💕👼🏼🌈👶🏻 👶🏼 ttc 🤰🏼
Please help! I don't understand how I can be getting a positive ovulation test today on cycle day 30!?! 🤦🏼‍♀️ I'm 4 days from AF and negative hpt today and yesterday - how am I ovulating? I really don't get this I had all the signs of ovulating earlier this month but no positive ovulation test till now! Any insight is appreciated! Thanks!