You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Which of the following is classes as a high risk pregnancy? and explain in detail?
All the above choices are risk factors for pregnancy. Risk factors during pregnancy include maternal factors of age (younger than age 15, older than age 35); history of complications during previous pregnancies (including stillbih, fetal loss, preterm labor and/or delivery, small-for-gestational age baby, large baby, molar pregnancy, pre-eclampsia or eclampsia); bleeding during the third trimester; hypeension; Rh incompatability; gestational diabetes; infections of the vagina and/or cervix; post-term pregnancy; pre-existing chronic illness.