Can a blood test predict a pregnancy earlier than a urine test?

http://www.womenshealth.gov/publications/our-publications/fact-sheet/pregnancy-tests.cfm


http://contraception.about.com/od/contraceptionfailure/p/bloodtest.htm

URINE TEST:

http://www.americanpregnancy.org/gettingpregnant/understandpregnancytests.html

The blood test for pregnancy has a 99% accuracy rate the main reason is blood test can able to detect even the smallest traces of the pregnancy hormone. If you take the quantitative blood test it measures how much hcg i in your system. You can take blood test sooner that urine test. As the urine test will not show the positive result.