I had unprotected sex a week back & took a morning pill after 2 hourstoday there was a thin flow of blood while urinating.does that mean i am pregnant?

Unlikely: If you took the morning after pill 2 hours after unprotected intercourse, if you were also ovulating at the time.... You would still have around an 80-85% chance of preventing pregnancy with the pill. So your chances of pregnancy are still low. Not zero, but low. The blood that you're seeing is more likely to be a result of the Progesterone in the morning after pill. Take hpt in 7-10 days.