How often to have sex while TTC?!

We have been TTC since Oct 2018. Still no luck. I reached out to my medical doctor again and she recommended we have sex everyday of my fertile window. We have currently been doing every other day. The problem is it’s impossible to get my hubby off every day. Absolutely no issues every other day. I have no idea why. I know his antidepressant medicine really effect him. But I was wondering if you truly think us not having sex everyday is changing our chances that much?! I’m just feeling a little lost and discouraged. And I know it’s just eating at my hubby.