The result of the test can already be considered reliable and means the absence of pregnancy. Recommendations for the morning urine test apply to very early pregnancy, i.e. if 10 to 14 days have passed since intercourse. After about 2 weeks, the concentration of beta HCG in the urine is so high that if you were pregnant - the test would already give a positive result. Symptoms may indicate an upcoming menstruation - nevertheless, if something still worries you, the test can be repeated or consult a gynecologist, e.g. here: https://www.gdziepolek.pl/telekonsultacja/z-ginekologiem I enclose a link to a helpful entry: https://www.gdziepolek.pl/opinie-i-pytania/99131/witam-do-stosunku-doszlo-12-lutego-17-lutego-wykonalam-test-z-k