K.--
i wish you the best in making your decision. i agree that since you have had your tubes tied your risk of an ectopic (tubal) pregnancy is increased, and therefore you need to see your doc as soon as you can. i imagine you have to wait until january since it is christmas--appointments are probably hard to get for another 2 weeks.
and yes, as another poster said, everyone has 3 options--abortion, adoption, and keeping the child. no-one can tell you what the right choice is for you, but the longer you wait the more your choices become limited. if you wait too long you cannot terminate the pregnancy, if that's what you would want to do, and if you wait longer still, adoption may seem like an unacceptable decision to make. it's a lot to deal with in a pretty short time frame.
i would just like to say something about the comments about a lawsuit, from the "other" side. i am a nurse-midwife and, knock wood, have never been involved in a lawsuit. but i have friends & colleagues, both midwives and doctors, who have. it is a humiliating, painful process. medical professionals are human. we are not perfect. we don't ever mean to harm our patients ("first, do no harm"--we all take the oath!). and surely when your doctor reviewed the surgery consent, he/she explained that there is a risk of pregnancy, even after your tubes are tied. NOTHING is 100% except abstinence. i usually quote a 1/350- 1/400 risk of pregnancy after a tubal. others may have different numbers, but those are the ones i use. repeat pregnancy is a known complication of tubal ligation, and unfortunately, many of those pregnancies are ectopic.
before you get in to see your doc, PLEASE pay attention if you have any symptoms of an ectopic pregnancy, such as worsening pain in your lower abdomen, especially if it is more on one side than the other, severe cramping, pain radiating to the shoulder, fever, or vaginal bleeding. if you have any of those symptoms you should get to an ER immediately.
i wish you the best of luck with your pregnancy, no matter what you decide to do. take good care of yourself!