Need Lotts Of Answers . Chance Of Pregnancy ?? ?

my last period was on the 26th of last month I'm due on the 23rd of this month . I had unprotected sex June 4th 5th 6th 13th 15th & 16th . I have some white clear discharge , my back hurts sometimes, and I can sleep for hours I never could before. I was ovulation on the 10th but idk how true the period tracker app is. what's the chances of being pregnant ? when should I test ??