Hello, I would be happy to help you with your question.
It is unlikely to get pregnancy
related symptoms during the first two weeks after conception. Also, it is unlikely that a pregnancy test is going to turn positive this early. Your symptoms are likely related to your cycle, and the pregnancy test should certainly be repeated in the next 1-2 weeks.
I hope that this helps. If you have more questions, please click on "ASK ME A QUESTION" link above to directly ask me a question!