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Hard telling really. I took 2 hpts before I started bleeding and they were positive. Then when I was bleeding I took 2 more and they were negative. Haven't gone to the doctor yet. So I'm not real sure if the blood interferes with the results or not. For a sure pregnancy test you should go to your doctor. .

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โˆ™ 2015-07-15 20:46:48
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Q: Can you having a menstrual period through your pregnancy throw a home pregnancy test to be negative?
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