Helpp!

Okay so as of right now its been 32 days without my period. I've been using this app and my last period was June 4th and my next predicted period was July 2nd so today its July 12th and no period. I have been ttc and no luck yet I tested negative on the 9th and 6th Idk when I should I test again help it's been 8 months since I've been trying to conceive so hopefully this is luck