Hello, generally there will be a complete skip of period if you are pregnant . But , that didn't happen in your case , but any ways a screening pregnany test will relieve you off your worry about it , and if it is positive ultrasonography between 45-50 days detecting a fetal cardiac activity is the only confirmatory diagnostic test for pregnancy .
But you need not wait till that long as you already got your , if the screening urinary pregnancy test also shows a negative result then it means there are 99% chances that you are not pregnant. Take care .
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