sex everyday to concieve?

Mamatoruben • 💙💗💛💚
We normally just have sex twice on fertile week.. and once on predicted  ovulation day is that where I am going wrong?
My period are irregular. (40 day cycle)
We have been trying for 7 months since the miscarriage and nothing.
This month we have tried to do it as much as we can. We're going to continue having sex until the 27th.
Period is due 7 of November  
What my usual month looks like - August
This month looks like - October.
Increase my chances?