Hello Thanks for writing to us with your health concern. You have had abnormal spotting instead of a proper period. WIth such irregular bleeding, the possibility of a pregnancy should always be kept in mind. A follicular cyst generally cannot lead to such spotting. However, after you have undergone a blood test and a pelvic ultrasound scan, pregnancy is ruled out for sure. There could be other reasons. stress, anxiety, recent weight gain, ingestion of hormonal medications, travelling, late nights, erratic eating habits - all these could be reasons. Apart from the scan, please have a gynecological evaluation also. A polyp or erosion on the cervix can lead to spotting. If the examination is also clear, do not worry. Occasional spotting might sometimes occur once in a while during your cycles. Just maintain meticulous menstrual charting. All the best. Take care.