Good morning to Health Care Magic.
First do a home pregnancy
test again with a blood test
for confirmation of pregnancy.
If both are negative,then need not to be worried.
There are several reason of missed period with exclusion of pregnancy. You may suffer from PMS.
So check the above test result and consult with me as soon as possible.
For suggestion,mail me...my id: firstname.lastname@example.org
All the best.