Hello dear I understand your concern There may be chance of the pregnancy as you have did sex in the unsafe period of the cycle. Absence of period is cardinal sign of the pregnancy Other variable symptoms are breast soreness and enlargement, fatigue, darkening and enlargement of areola, nausea. If your period will delay by the 8-10 days then go for urine pregnancy test in first morning sample. You can also go for blood HCG test as it is accurate and detect the pregnancy within 7 days of delayed period. Avoid stress, take healthy diet and do regular exercise Hope this may help you Contact HCM for further health query Best regards Dr. Sagar