PLEASE PLEASE help, so confused and new at this.

Korey • First time 🤰🏼baby girl 🎀 Hanna 11/10/19 💍 5/11/18
Been ttc for 6 months. Since it hasn’t happened, I decided to try opk. So my cycles have been 30,
29, 29, 27 , 26, 26. I started opk on cd9. Got a smiley face on cd12. Was testing in the evening at around 8pm. Husband was sick that night so no sex. We had sex on cd10 evening. We also had sex the evening after positive opk. So cd13. I didn’t take a test yesterday but decided to take one today and got no LH surge. So I’m assuming i ovulated yesterday? I’m still new to how this works. Is this how we should’ve had sex? So I had sex 48hours before and 24hours after positive LH. Planning on sex tonight which would be 48hours. I’m not sure if this is how I should be doing it, everything I read is kind of contradictory. Should I have sex the night of LH surge or wait until the following 2 days (like I’m doing this time?) Please help! I’m so confused!!