Could Tightness In Abdomen With Cramps And Spotting Be Pregnancy Symptoms?

it has been only six days since the day of intercourse. i had ended my period the day before intercourse. i have been questioning if i am pregnant even though it is to early to be certain. My stomach feels tight, i have been getting a lot of craps, i have been more tired then usual, i have been spotting today and yesterday, i feel some pain at the end of urinating. am i pregnant?