What are the chances if BD'ing only once in the fertile window?

Jamena

What are our chances if we BD only once in the fertile window (1 or 2 days before ovulation)? I keep reading that we should BD every day or at least every other day but my husband has chronic sleep issues and lots of work-related stress so his sex drive is really low. I feel like this is going to take forever even if all our equipment is working properly 😭