Fertility problem ? Docs visit ??

Cassaundra
I ovulated the 19th of this month and my hubby and I BD that day on glow said it was a 33 percent chance of conceiving and that I was ovulation . 
 we have been trying a little under a year and still no luck . If I test august 2nd which is what the bump said I should and it's a BFN do you gals think I should seek doctors help ? I'm not sure when it's okay to seek fertility help /opinion ..