I would echo what a lot of the others have said. I'm 25, and 1 1/2 years ago, I left a nice job in human resources to pursue nursing. I personally didn't feel like what I did really mattered or had any meaning for myself or others, and I needed a different job in order to be "fulfilled." I wanted to have the chance to really help people. At the time, I only had an associate's degree, and was working full time to just get by. With nursing, I will be able to work part time and make what I did before, which means more time to be a mom
My daughter is 3 now, and I do have sadness that the next two years of her life she'll be in childcare almost full time while I go to nursing school (although I'm sure she'll be having a blast playing with friends and getting to do all kinds of creative activities that I would never come up with on my own!) But I also know that, if I choose later, I can work nights so that I have some flexibility to be home with her during the day on her days off from school or if she's sick, etc. Those are things I'm looking forward to and I think the long term results will be worth the sacrifice I'm making now.
Ultimately, you obviously have to follow your heart and do what is best for you and your family. One thing I have found that is quite nice is that many of my fellow students are also parents, so we're all in the same boat trying to balance family and school (and many balance a job along with it). Good luck to you as you make your decision!