Welcome to HealthcareMagic forum.
The right time to get pregnancy
test is when you miss your period.
It is good to know that you missed your period. But as the first pregnancy test is negative, you may need to repeat it again. You can get the test done after 3-5 days or a week later to confirm pregnancy.
I also suggest you to take folic acid
in the dose of 5mg one tablet a day.
As long as your peroid doesn't return, there are plenty of chances of pregnancy. So do not lose hope yet.
I hope this helps.
All the best