What are some ways to confirm your pregnant before it shows on a test?

Blood test. You can do a blood pregnancy test which can be positive as early as ten days after you conceive.
Test is best. A serum pregnancy test is the earliest way to tell. A home pregnancy test (urine pregancy test) is an easy way to check if you are pregnant. It can detect low levels of the hormone b-hcg, which the embryo begins making when it is implanted in the uterus. A home pregnancy test will likely be positive before you show any signs or symptoms of pregnancy.