Hello, and I hope I can help you today. Back pain is a common occurrence in healthy women during pregnancy, even those without any background disc disease. Because of this, there is definitely a possibility that pain or other symptoms from your slipped disc might get worse as you gain weight and as your pregnancy grows. However, there is no additional risk to the baby or pregnancy from having disk disease. Your history of gestational diabetes is actually the most concerning potential complication for this pregnancy. You should be tested early in the pregnancy to see if you are diabetic, and if you start the proper diet and or medication treatment as soon as possible, it will give you the best likelihood of a good pregnancy outcome. So in summary, the pregnancy itself is not at any additional risk because of your disc disease. However, your back pain could get severe, especially if you gain a lot of weight, and is unpredictable how this will affect your ability to do household activities and care for your other children. I realize this information will not really help you and your husband decide what to do about the pregnancy, however I tried as best as I could to evaluate the medical facts and give them to you see you can make an informed decision. I hope I was able to adequately answer your question today, and that this information was helpful. Best wishes for the rest of the pregnancy, Dr. Brown