Artificial insemination ovulation after the 12th day with test paper pregnant?

Artificial insemination ovulation after the 12th day with test paper may not be pregnant, generally in more than 15 days after fertilization can be detected with early pregnancy test paper, if you want to know as soon as possible whether pregnancy is successful, you can also choose to go to the hospital blood test hcg, more than 7 days after fertilization can be detected.