Actually, testing before your missed period is just going to give you unnecessary stress yaar. Just wait till your date passes, and use the first morning urine for a solid result.
My mother-in-law advised me to wait patiently for a week, but my doctor said testing on the day of the missed period is perfectly fine. Trust your body and take the test calmly with morning urine.
I totally understand how agonizing the wait can be when you are hoping with all your heart. Try to take deep breaths and test a day after your missed period so you get a clear, joyful answer.
It is always safest to wait until your period is missed by 2-3 days before testing. If you test too early and get a faint line, please schedule a visit with your gynac to confirm with a blood test.