I don’t think my chances are high BUT

My partner and I are sort of trying but not trying. According to my multiple trackers I should have ovulated around the 11-14th, since my cycle began on the 4th and my cycle is about 22-24 days. we had unprotected sex on the 17th but were interrupted so we didn’t finish. I haven’t had any other symptoms besides cramps and and clear discharge. But I have not had a lot of discharge at all. I should be expecting AF tomorrow(the 26th). however, when logging my daily symptoms another app said my period is coming on the 28th. I’ve only recently started tracking my cycle but the past two cycles have been 23 days. I took a test yesterday and it was negative. But that was early. Do y’all think I have a chance?