Hello I appreciate your concern Chances of pregnancy is always there with unprotected sex but you need not to worry until it confirms Delay in periods can be caused by number of reasons like Hormonal imbalances Infection like UTI or STI Stress and anxiety Diet In my opinion camps could be related to imminent periods or an infection of urogenital tract I would advise you to follow these guidelines Repeat your test with early morning first voided urine sample Maintain good hygiene Just relax because stress and anxiety further affects the periods Hot water bath or antispasmodic drugs will definitely help you Hope this help you wish you good health Regards