The fact that you had your period after having intercourse means that there wasnt any conception, which means you arent pregnant.
But you're vomiting
the whole day is a problem, that is why your doctor recommended a blood and urine to test, to try and find out if there is an infection.
If the results are normal, I am sure she will pursue other tests in order to find out what is wrong with you.
I hope this answered your question.