First consider the following "reversal" question: If you were to either deliberately (not at all unlikely, given widespread young female mindsets and social setups, including by your account in your country of residence) or carelessly (today no adult woman needs ever become pregnant "by accident", there is absolutely no excuse whatsoever unless she has been cosseted in some isolationist religious/cultural (dis)order through all her formative life) acquire a handicap which will remain with you for 16 years at least and at most some 21 years or so. If you have chosen to take it on when you could have decided to avoided it and you certainly had a period when you could change your mind and escape it, could you demand of your daughter that she also take on your burden ? How much would her duty to accommodate you, clean up after you, etc., etc. amount to ?
No, your daughter is an adult and is responsible for her life. By all means give her the benefit of your advice, show her understanding and sympathy if you feel it appropriate but do not let yourself become the acquiescent subject of moral pressure/blackmail. Without doubt you need to weigh up what you feel you should do for your daughter, including so as not to feel you will end up regretting any action or inaction. But do so as dispassionately as you are able to, then decide and follow through on your decision. Although noble help is admirable and has often been heart warming to learn of, one comes across lots of stories of how people "did the right thing" but all to no avail and everything ended in a mess for all concerned.
A friend of mine recently told me how in a serious conversation which her son had with his child over its upbringing, he quoted what she had sternly said to him when she brought him up. It is our duty to bring up our children so society can tolerate them. What she did not say, but I feel is the conclusion, is that after that they are on their own. As adults they almost always make their own independent choices and take on additional priorities and preferences which they must bear responsibility for. In most cases the choices are necessary, sensibly made because of and as part of their new and developing lives, but too often those priorities and preferences are of questionable merit and lead to rifts between parents and children - it is not the parents' responsibility to adapt to and carry the can for the consequences.
It would be a pity if any remaining possibility of you and your daughter finding common ground were to be destroyed, but she has in reality no more right than anyone else to commandeer your life.
Good luck.