Hi, If you have missed your period and have negative results on a home pregnancy test (HPT), it is unlikely that you are pregnant. However, it is important to note that HPTs are not always accurate, especially if taken too early or if the test is not done properly. Abdominal and breast pain can be caused by a variety of factors, including hormonal changes, stress, weight gain, or an underlying medical condition. Breast pain and enlargement can also occur as a normal part of the menstrual cycle. Abdominal pain can be caused by menstrual cramps or digestive issues such as constipation, bloating, or gastroenteritis. If your symptoms persist or worsen, it is important to consult your healthcare provider for a proper evaluation. Your doctor may perform additional tests, such as a blood test or ultrasound, to rule out any underlying medical conditions that may be causing your symptoms. In the meantime, you can try managing your symptoms by using over-the-counter pain relievers, applying warm compresses to your breasts, and practicing stress-reducing techniques like meditation or yoga. Maintaining a healthy diet and regular exercise can also help manage symptoms and promote overall well-being. Take care. Hope I have answered your question. Let me know if I can assist you further. Regards, Dr. Priyanka, General & Family Physician