With a husband and a 2 year old, I don't think this is a good idea. If you end up failing everything, you will be even further behind, since you'll lose a whole semester. Take it over 2 semesters. It will be worth the delay in applying to school.
Keep in mind these pre-req classes are not just hoops you have to jump through in order to apply to nursing school. They require these classes, because you need the knowledge of these classes coming in to nursing school in order to pass. If you are too busy to actually learn the content, even if you can pass all of the classes, you are still hurting yourself in the end. Nursing school is overwhelming, and when you don't have the foundational knowledge you need, it will make your life hell. Just my thoughts, good luck!