Hello, I would be happy to help you with your question.
If the last time that you had sex was 5/11 and if you had conceived at that time, then you would be 12 weeks pregnant!!. Your pregnancy
test would be positive (and it would have been positive now for almost 2 months). So based on what you are telling me, you cannot be pregnant.
With regard to your symptoms, these all might be cycle related. You should talk with your doctor about these symptoms and discuss effective birth control methods so you do not have to go through this worry!
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