Every day is fine if you're enjoying it. Every other day is fine too.

We found every day to be too much (especially after several months of TTC) and we weren't enjoying ourselves. The every other day method keeps it from becoming a chore and it is still effective because sperm can live for 2-3 days inside you.

We did every day and got pregnant on first cycle of trying. It's worth a shot!

If your husband does not have a strong sperm count, you could deplete his sperm by having sex too frequently. If you can pinpoint ovulation exactly and your husband doesn't have any known issues, I'd probably have sex the two days before ovulation and ovulation day.

Should I be having sex every day during my fertile window to ensure pregnancy? Are there any disadvantages to every day? I know most give advice of trying every other day. Is there certain reason for that?