Hi M.,
First, I am so sorry you received such news. I cannot imagine how scary this is for you and your family. This is a big decision and it looks like you are giving it enormous consideration and that is good.
You're going to hear all kinds of advice on this and it will range anywhere from physical to financial to spiritual standpoints. Unfortunately, you're the one who has to make the decision and it is a lonely decision to have to make. I will pray that you will have peace in the coming days. And, I'll obviously pray that the tests come back saying she is A-okay! :) It can and does happen!
While you are facing this decision, please remember this story. I have a dear friend who was told her child was going to have this same Trisomy 18 disorder. As you can imagine, she received all kinds of advice from well-meaning doctors and friends about what to do. I'm sure you're hearing the same things she did. She decided to keep her baby and just trust God, whether the baby was going to be healthy or if they only got to spend a few minutes with him. (She is one strong woman! I can't imagine having to face a situation like yours and hers). Anyway, M., the doctors and tests were 100% WRONG. They told her the same thing about her son having Trisomy 18 and that he wouldn't live beyond a few minutes or months. Today, she has a healthy and beautiful son that has not an ounce of problems the doctors told her to expect. He runs around and laughs and is smart and boisterous like his three brothers and little sister. Not to say that things are going to be peachy and that it is going to be easy if you decide to keep your baby girl. We all know life isn't easy and that sad things happen to wonderful people. I just want to offer you hope. I have no clue how tests could be so wrong, but if you want to speak to her yourself, I'd be happy to connect the two of you. She's walked in your shoes and might be able to share more than what I even know of her story.
I share that story because I hope it encourages you as you face the coming days. Even in this day and age, tests and doctors can be wrong. And, even if they're right, I still believe God works miracles and offers blessings in the midst of turmoil.
Given that the tests are so inconclusive and given that doctors are sometimes wrong, you're right to struggle so much with this decision. It sounds like you are leaning toward keeping your little girl because you sound unsure about the test results. There ain't nothing wrong with having hope, chica! If the tests next week say she probably has T18, I agree with your friends who say that even a few months or minutes of life with her will turn out to be special to you. Every child has worth and beauty and I take issue with anyone who would say to make a decision to dismiss a baby simply because a special needs child is going to eat up all your money. I'm so relieved you didn't even mention finances as part of your decision. Believe me, you're going to hear it. Anyway, that's just my two cents.
I have had two friends with children diagnosed with T18 and know it is a lonely place to be. M., you are in my prayers, sweetheart! Please let me know if you want to talk to my friend. I cannot tell you how awesome and loving she is. I think she could be a great friend to talk to since she knows exactly how you feel and the rest of us do not.