It is also a possibility that you experienced a missed
miscarriage.. Where the pregnancy stops developing but you body has not expelled it yet...
Symptoms can continue for weeks after because your body hasnt recognize the lost of the pregnancy yet... This happen in my first.. at 12 weeks, i measured 7.5 weeks at a scan.. and I had definitely puked the day before and was still have some symptoms...
At this point in time, you cannot really conclude either way..