Hi, Thank you for query. Delay in periods can occur due to many causes. We cannot come to one conclusion regarding pregnancy depending on the symptoms as other conditions like premenstrual syndrome can present with same kind of symptoms. If your previous menstrual cycles are regular, urine pregnancy test result can be considered. If you are having irregular menstrual cycles, better to go for blood test for pregnancy. If the test comes negative, consult gynecologist once and take tablets to induce withdrawal bleeding. Meanwhile you can take symptomatic treatment for breast tenderness etc. Take care.