When the body is infected with the rubella virus, it defends itself by producing antibodies, including IgG and IgG. IgG lasts for the rest of your life. You must get rubella testing in pregnancy in Delhi to check for the infection. Negative and positive IgM results allow for a quick diagnosis of the infection. But they should be confirmed by the appearance of the IgG levels 1 to 3 weeks later. You also need to check the rubella test price in Delhi before you take this test.