You will have to decide for yourself, of course. IMO, trying to juggle a full time job while raising a toddler AND going to nursing school sounds suicidal. Someone is going to get the short end of the stick. The thing about nursing school is you have to be 100% committed to it. I would recommend that you take your pre-reqs at a pace you can tolerate. Then when your child starts school, perhaps you will have more time and less direct responsibility.
Personally, if I were to consider a career change at my age(50s) I would NOT choose nursing. Not at this age. I've put in 36 years of work experience, the first 18 years working in hospitals on the evening and night shifts. I have paid for that with a sleep disorder, type 2 diabetes, arthritis in my feett from all the standing and walking. Best thing I ever did was leave hospital nursing. I worked as a school nurse the last 6 years and even that became difficult as my arthritis got worse. I left school nursing and now I'm working for a non-profit, doing training and chart audits. Most of my day is spent researching files and writing educational materials, which I truly love. But I couldn't have done this job as a new grad. It has taken 36 years to get where I am today.
Good luck. I hope you think really hard about this. I woudn't do it until your Husband is on board. Nursing school can be incredibly hard of marriages and families.
ETA: oops! zombie thread!