My boyfriend & i have unprotected sex every time we have sex, something strange happened this month though my period came 8days early could i be preg?

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). An Ob-Gyn doctor can evaluate, if any unusual or worrisome symptoms.