Chances of pregnancy?

My cycle ranges anywhere from 20-24 days respectively. Had sex on the night of my 18th day and still haven’t gotten my period yet (today is 24). I know my chances aren’t high but wondering what other ladies with shorter cycles think? Ovulation is obviously hard to pin down but from what I’ve gathered over the years, I experience the egg white discharge around days 10-12 but the internet seems to be unhelpful when it comes to getting pregnant beyond estimated ovulation. Personal experience from real women is appreciated.