How often should TTC couples have sexual intercourse?

My husband and I are trying to conceive our first child and the amount of information can be quite overwhelming? Trying to apply the app and other research can make the process more stressful. We’ve been trying the past few months and I’m currently in my fertile window. How often should we be having intercourse. I hear every other day is best however the app says it’s optimal on my most fertile day and on the day of ovulation, which is back to back. I took an opk today and it’s a positive 🤗 Thanks in advance...baby dust to all TTC!