Hello, Thank you for your question. For pregnancy symptoms are amenorrhea or spot period, nausea with or without vomiting, breast enlargement and tenderness, increased frequency or urination without dysuria, fatigue. Others additional symptoms may include mild uterine cramping/ discomfort without bleeding, abdominal bloating, constipation, heartburn, Shortness of breath, food cravings and aversions, mood changes, lightheadedness, difficulty in sleeping, low back pain. Clinical suspicion of pregnancy is increased if you are in any sexual activity while not using contraception or with inconsistent use of contraception. However, even women who report consistent use of contraception may become pregnant because of user issues and because no method is 100 percent effective. Cessation of menses can be a difficult symptom to evaluate because some women have irregular menstrual cycles and many women have occasional prolongation of a cycle. Furthermore, vaginal bleeding/spotting is relatively common in early pregnancy and often occurs at or near the time that a menstrual period would be expected. However the side effect of birth control pills also including vaginal spot bleeding, breast swelling or tenderness, nausea or upset stomach, and mood changes. You can try to do another pregnancy test and make sure that you not pregnant. Go to see your doctor if you have prolong heavy vaginal bleeding. I hope I have answered your query. Let me know if I can assist you further. Best regards, Dr. Heang Chan Raksmey, General and Family Physician.