How Soon Is Too Soon For A Pregnancy Test. Use our helpful ‘when to test’ calculator to. It is this hormone that all home pregnancy tests detect and some tests are so sensitive that they can be used up to 6 days before your missed period (which is 5 days before your expected period).

It is this hormone that all home pregnancy tests detect and some tests are so sensitive that they can be used up to 6 days before your missed period (which is 5 days before your expected period). You can take it sooner than the urine test. As the weeks go on, these symptoms may get stronger before your hcg levels even out late in the first trimester.