OPK Test Progression

Rose • Mommy to Emma 🎀🌈 Wife 👩‍❤️‍💋‍👨 Educator 👩🏼‍🏫 Baby #2 due June 2021 👶🏻

I posted in the general TTC group with no response. These are my ovulation test from the last 3 days, which are CD 10, 11 and 12. 10 looked the same color, 11 test was darker, and 12 (this morning) test looks lighter. If we only BD on CD 8 and 10 (10 with preseed), do we still have a chance? I ovulated quite a few days earlier than expected so we didn't BD as much as I'd hoped. Really want a ➕ 🎄👶