Timing it Right?: TTC baby #1

Hi!

We have been ttc baby #1 naturally for 8 months now. I wanted to get some help understanding if we are timing BD right.

I’m using pressed and opks - check for LH surge. It was low on CD 12 and got a positive on CD13 it was positive until CD14 afternoon.

We BD’d on the CD 12,13,14,15. Shall we continue till the end of the week.

Any information will be helpful.

Thank you in advance.