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You can still be pregnant , as home pregnancy
test can be negative at times.Please wait till a week for your periods.If you don’t get periods even then , repeat home pregnancy test.
Alternatively , you can go visit your Gynecologist and get blood test
can confirm the pregnancy too.
If you have missed period not because of pregnancy , you should get evaluated for any underlying disease.
Hope I answered your question.If you need more information feel free to mail me.