Ended period friday, unprotected sex sunday, today is tuesday pinkish while i wipe, side of breast hurts sometimes should i worry? pregnant?

Hard to guess: It can be hard to tell if a woman is pregnant because some of the symptoms seen in early pregnancy can also happen in non-pregnant women. A urine pregnancy test gives a reliable result if done correctly, about 3 weeks after sex (3 weeks after when conception might have occurred), or 1 week after missing a period. Whenever a fertile woman has sex with a fertile guy, there's a chance of pregnancy.