27+ P Pregnancy Test
Pictures. 99% accurate at detecting the pregnancy hormone. Home pregnancy tests detect a hormone in your urine called hcg (short for human chorionic gonadotropin).
How do pregnancy tests work? When to take a pregnancy test. An extremely accurate pregnancy test uses radioimmunoassay of hcg in a woman's blood.
While these home pregnancy tests can test positive for pregnancy as early as ten days after conception, obstetricians still suggest you wait until the first day of your missed period.
Follow the instructions on the. Modern pregnancy tests are effective from the first day of menstruation (or 14 days from conception). How do they do it? 1) testing for human pregnancy hormone (human chorionic gonadotropin (hcg).
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