I ovulated on the 2nd and i had unprotected sex 4 times today. is there a chance that i can get pregnant ?

Not much: The egg will be fertile for about 24 hours after ovulation. If it is not fertilized within 24 hours it is not going to happen. You are unlikely to conceive this cycle.

If unprotected: If unprotected intercourse there is a chance if the egg was still hanging around, but as you get farther away from day of ovulation the chances decrease.

Always possible: If you ovulated on the 2nd and today is the 6th, that was 4 days ago. Typically the fertile period is the 5-6 days prior to and including the day of ovulation. You would not be in the most fertile part of your cycle. That said, it is sometimes hard to know exactly when ovulation occurs (without ultrasound, etc.). If you are off on the calculation by 4 or 5 days that is enough to make a difference.