I had unprotected sex while a ovulation test was positive. how early will i notice changes? is 3 days too soon. have had sore breast and mild cramping

Too soon: It takes 2 weeks after sex, for a woman with sensitive body awareness to feel early symptoms of pregnancy. A woman of childbearing age who has some nausea (with or without vomiting), some fatigue (feels less energetic), a sharper or stronger sense of smell, mild soreness or swelling of her breasts, and maybe some food aversions and cravings... could be pregnant.