Re: wanted to be a doctor?
My impression is that nurses (acute care) do tend to have more flexibility and job opportunities across the board. And when they are off their shift, they're off. The educational investment is much lower than for MDs. If you're concerned about how to balance work and family life check out some nursing threads on that here as well finding a similar board for MDs who are moms (I've seen at least one out there on the 'net.)
In regard to patient contact, while most nurses do get more patient contact, how involved or personal or continuous that care is varies. In most acute care settings (med-surg, ICU), patients come and go pretty quickly (less than a week), you may not have the same patient assignment day-to-day. You are responsible for them for your shift, not before not after, so it's just a small window on their individual illness journey. Nurses have many different responsibilities to cover during their shifts including tons of documentation. They are often being pulled in several directions at once (dr on phone, pt family upset, new orders to check, pt meal not delivered, etc) which means that they often don't have "extra" time to spend with patients either.
There are certain areas of nursing and certain facilities that allow for more extended patient contact. That is true of medicine as well. So in that regard, I'd suggest getting more information and exposure to different possibilities.
Whether to go the nursing school route or med school route is a big decision. Hopefully, you'll be able to take some time to really feel out the different areas. Get out there and talk to doctors and nurses, shadow them if you can, see where they work and who they work with, etc. Try to balance your practical concerns with your gut feelings. If you enjoy what you're doing (medicine or nursing), the obstacles and stresses will be exciting challenges.
Good luck!