CD 11, positive OPK, question please! 😀

Good morning! I don't normally use OPKs religiously each month, but this month I started using them on CD 9, per directions based on my cycle. CD 9 and 10 nothing, but I had a hunch I was Oing earlier since my cycles started to regulate. Today, about an hour ago, I got my smiley! 😀 now, when I used them in April and got the smiley, we BD about an hour after I got it and never caught the egg. We've been BDing every other day since CD 5, so today is our BD day anyway. So my questions are: Do I need to test again tomorrow? What day is considered O day (I took a break from temping too), and will BD tonight (DH is at work until 5:30) and Monday suffice or should we tomorrow too? This is TTC month 10, month 2 since regulated cycle per doctors' interventions. Any advice is greatly appreciated, baby dust to us all!! ✨✨✨💫💫💫