unprotected sex before ovulation- used withdrawal method

hello- I am 27 years old and had unprotected sex about 2 days before my ovulation period should have started. we used the with drawal method and sex only lasted about 20 seconds. 2 weeks later, my breasts are sore but its about time for them to be as they are evry month before my period. I am not late yet but i am worried. i have no other symptoms that are different from my usual premenstrual symptoms. How early would i have signs of pregnancy?

Well I guess judging by the age of the question, you should now know for sure