What test did you have? Was it a hepatitis C antibody test or the test for the virus itself called something like HCV RNA by PCR?
If it was the antibody test that means you were exposed at some time in your life to the hepatitis c virus. However about 25% of people who are exposed to the virus can beat the virus on their own without treatment. They will forever test positive for hepatitis c antibodies but will test negative for the virus itself when tested with the HCV RNA test.
So first of all to confirm you are currently infected you need to have the HCV RNA by PCR test. Only then will you know if you are infected with the hep c virus.
If you do test positive for the virus the test will also provide your viral load (how many copies of the virus are circulating in 1 mL of your blood). You also need to test to determine what genotype of hepatitis C you have as treatment method is determined by what genotype you have. Just to add that with the new drugs approved I just the last few years hep c is very curable for most people. Treatment could be as simple as 1 pill a day for as few as 8 weeks in some cases and you can be cured of hep c. You will still test positive for hep c antibodies but will test negative for the virus.
Hepatitis c is a blood borne virus and requires blood to blood contact for transmission. The most common method of transmission is IV drug users sharing needles. There are other way to catch hep c also like having a blood transfusion before hep c antibody testing became available in 1989.
Hep c is not easily transmitted in the household between family members. Things to avoid are sharing of personal hygiene items like fingernail clippers, razors and toothbrushes or any thing contaminated with blood.
In general hep c is not considered by the CDC to be a sexually transmitted virus at least not for long term monogamous couples. For those who engage in rough sexual practices especially if involving blood letting, have multiple sex partners or in the presence of HIV there is an increased risk so for those persons the use of barrier protection is recomnended.
So first up, get the test for the hep c virus the HCV RNA by PCR test. Then if that is positive your doctor will test you for your genotype. Next get treated and get cured of your hep c if you are currently infected.
Best of luck to you