I am lightly spotting 11 days after my period, i had unprotected sex 5 and 7 days after my period finished. what does it mean. thanks?

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. One can test about 3 weeks after sex (3 weeks after when conception might have occurred), or 1 week after missing the next period. An Ob-Gyn doctor can evaluate any worrisome symptoms.