Could you be pregnant if your breasts have been sore for a month?
Your breasts can be sore for many reasons other then pregnancy. Progesterone which is released before your period can cause your breasts to be tender. If you think there is a chance you are pregnant take a test. Whatever the result occasional breast tenderness is normal. If it is accompanied by nipple discharge or lumps (out of the ordinary)you should contact a doctor. And don't forget to do your monthly self exam.