Question...Ovulating soon!

Kaitlyn
So my hubby just found out that he has an abnormal heart rhythm 😔.  It will be treated with meds but he is going to the cardiologist tomorrow.  We are TTC #1 for the second month and I'm coming up on my fertile window.  If we can only BD one time during this time what is the best day?  Should we just BD 24 hours after my positive opk?  Please help 👍🏼