Practically speaking, test on the day after your missed period. If you do it earlier, you might get a confusing faint line, which will just distract you during your work hours.
Beta, you should wait for at least 5 to 7 days after your missed period date. Keep your mind calm, drink warm milk at night, and test with the first morning urine for the most accurate result.
The absolute best day is the morning after your missed period. I remember testing too early and getting so stressed over faint lines, but waiting a bit gives you a clear answer.
Clinically, testing on the first day of your missed period is highly recommended. The hCG hormone level is concentrated enough by then, especially if you use your first morning pee.
For the most accurate result, try to test 1 or 2 days after your missed period. Testing too early can give a false negative because the hormone levels are still low. Best of luck!
