When to test??

I was ovulating September 23-29th. Me and my fiancé had sex everyday during this period, sometimes multiple times a day. My period according to this app is supposed to come Wednesday. But I am having no signs of my period coming & I usually do. Should I wait to see if I get my period or should I go ahead and test? Cause I can’t get any straight answers on how long after ovulation I should test.