The signs are just the same as before you had your tubes tied and and got pregnant. Missed period, breast tenderness, nausea, frequent urination, etc.
== Answer ==
If you are referring to an ectopic (tubal) pregnancy some symptoms are: Lower abdominal or pelvic pain Mild cramping on one side of the pelvis Amenorrhea (cessation of regular menstrual cycle) Abnormal vaginal bleeding (usually scant amounts, spotting) Breast tenderness Nausea Low back pain If rupture and hemorrhaging occurs before successfully treating the pregnancy, symptoms may worsen and include: Severe, sharp, and sudden pain in the lower abdominal area Feeling faint or actually fainting Referred pain to the shoulder area