My breast are sore my periods not due for 11 days i had sex 4 times last week while i was fertile ovulating what are the chances its a early pregnancy?

Possible but : Having intercourse around the time of ovulation can certainly lead to pregnancy. Since you would only be a few days pregnant it would be too soon for a test to show the result and too soon for it to cause symptoms like breast tenderness. If you do not want to be pregnant please see a doctor for birth control. Schedule a visit to discuss causes of breast pain.