If you have had unprotected sex, then yes pregnancy is a possibility. However, the symptoms your listed above can be caused from a number of illnesses as well. Headaches can also be a PMS symptom. Have you missed a period? If you have, take a HPT. You should also consider making an appointment with your doctor in order to determine what is going on with you body. Keep in mind that whenever you dwell on something, like being pregnant, you can actually trick your body into "feeling" like you pregnant. Good luck and see your health care professional ASAP.
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