Positive opk today :) means periods running normally !

Khyla renee • 🔮27✨momma to baby Vee🌈💕
Hello ladies took my first opk at 6:13 pm today just for the fuck of it and its positive i had sex yesterday morning using preseed and havent had sex yet today but plan to ..Since i didnt test yesterday ..cud that mean i wud of got a positive opk yesterday as well and ovulate today ..my last 2 cycles i Od on cd 18