Idk ??

Last period: July 11th - July 15th 
Average cycle: 30 day 
I had protected sex ( condom ) on July 22nd 
I still haven't gotten my period, the app keeps pushing it over when I write in I haven't got it. 
Idk if it's to early to test or whatever 
It was close my ovulation time. 
What do you think ??