My period is usually on the 22 well I had unprotected sex 4 days before and my periods usually 5-9 days well it was only 3 days this time what are my chances of being pregnant?

Is it what you are hoping for?

Actually its too soon to know... unusual periods happen, you need to wait and see if your next period comes or if its late. Its far too soon to be testing.

There is a chance. No percentages, too many issues.. but it is possible. You will have to wait till next month and see if you have a period or not.