My boyfriend & i had unprotected sex lastnight & i felt crampy like i was about to start my period but i already had it could i be pregnant ?

Pregnancy: While unprotected sex may result in pregnancy, it is unlikely that you would have any immediate symptoms that could be attributed to conceiving. Perhaps local irritation as a result of intercourse. See your doctor if you have frequent urination or burning while urinating - a UTI or abnormal discharge - possibly sexually transmitted infection.