You've described a dilemma that millions of young women struggle with today. Three competing choices lie before them--whether to have a career, be a wife and mother, or attempt to do both. It is a decision that will have implications for everything that is to follow.
Since you don't yet have plans to get married, I would recommend that you press ahead with your academic goals. Once your training is complete, you will still have all the options available to you. If by that time you are married and want to become a full-time mother, you can put your career on hold for a few years or leave it altogether. Remember, you can always return to it after the children are older.
Only you can decide what is best for yourself, of course. I would strongly suggest that you make it a matter of prayer as you seek the Lord's will for your life.
Everyone knows that raising children is not an easy task. Add to that, having a child with special needs. Studies have shown that the pressure becomes so high, it has driven 80% of marriages to the point of divorce. On today’s classic edition of Family Talk, Dr. James Dobson concludes his discussion with Bob West and his son, Kyle, who has cerebral palsy. John 9:2-3 says, “His disciples asked him, ‘Rabbi, who sinned, this man or his parents, that he was born blind?’ ‘Neither this man nor his parents sinned,’ said Jesus, ‘but this happened so that the works of God might be displayed in Him.’” Listen and find hope as Bob and Kyle discuss the ministry that God birthed out of their own journey of life.