Venturing into the Nursing Field

I am currently a stay at home mom with 2 children. I have decided to go back to school for nursing, and need advice on the best route to take. I am finishing my BA in Fine Arts I was going to be an Elementary Ed Teacher, but have decided I want to Nurse. I have been struggling with this choice for a long time, and have finally decided. I am wondering if I can just get my ADN. I am planning on focussing mainly on Patient care and am not interested in the Administrative aspect. I am looking for an email penpal/mentor to talk to , and get some advise from. I want to be an OB nurse I love everything about pregnancy, labor, and delivery. If any one out there wants to offer advice it would be greatly appreciated. THANK YOU!