Am I pregnant

Madison
So I had unprotected sex alot over the week of August 28th 2014. My doctor drew blood in order to do an early test but it was not even a week after it happened. It turned out negative. But here I am 4 months later having every symptom of being 4 months pregnant. I took a test yesterday and it was negative. I don't understand I even have a little bump but my mom is certain that I'm not pregnant because the blood test said so. Help?

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