Ttc for almost 2 month's i have a ?

We've been ttc for almost 2 month's.

We've had sex June 7, 8, 9 ,17 ,18, 22, 23, 24 ,25, 28.

We've had sex July 1, 3 , 4 , 5 , 6 , 7 , 9 , 10 , 11 , 13 , 14(Today) according to glow today is a 7% chance of pregnancy and I'm fertile July 17th-23rd.

AF is due august 5th- 14th. i haven't had AF in July yet.

I am prone to irregular periods though.

But i was wondering to help to ttc maybe a better chance , should we been doing it more than once a day ?. I am prone to UTI'S also so it sucks every time we ttc i end up with one.