only morning pee?

I track my period in two different apps, one said i had to start last Wednesday & the other one said today. Im stressing out & i keep checking every moment to see if i started. I only notice that i have less or dry discharge in my underwear. No boob tenderness no nothing i don't feel pregnant i just feel stressed that i don't start & i didn't have sex in my fertile week. I have a digital first response test, can i take the test at anytime during the day or do i wait until Sunday morning?