A little bit of brown breast swelling and pain can not determine whether the pregnancy, you need to go to the regular hospital for testing to determine whether it is pregnant. A little bit of brown may be out of the ovulation period, the lack of estrogen in the body, this situation will lead to a small amount of bleeding, stored in the uterus of the old blood is brown, this situation is not pregnant. A little brown breast swelling and pain may also be pregnant, at this time, women need to go to the regular hospital to check the human chorionic gonadotropin test to see if it is not increased to the level of pregnancy, if so, then pregnant. You can also use a pregnancy test, if there are two bars, it means that you are pregnant. To accurately determine if you are pregnant, you should seek medical attention.