As a mommy, I don't blame you at all. I am struggling with this right now. My daughter is starting pre-k, dances, goes to karate and is starting to have a little social life. I want to be there for all of that.

Fortunately, I'm an experienced nurse, and can work per-diem (which is what I do). An ER position is going to be a huge undertaking. Consider your schedule (FT days, lots of classroom?). Probably studying at home?
As a nurse, I would advise you not to wait too long. As another post mentioned, realize that your learning curve will change if you wait. I failed boards the first time, and HAD to wait to work. I than could not get the ob I wanted. I had to settle for home care, and lost virtually all my skills and knowledge. By the time I got into the hospital, I felt very behind.
The good side of your situation is that you will be able to get a job in 6 months (there was NO shortage when I graduated). That is, if you want a ob in 6 months. (the longer you wait, you may end up putting it off even more). Also there are refresher courses available if and when you decide to go back (I didn't have that option either).
You may want to consider a school nurse or a doctors office part time, just to keep your foot in the nursing door. Part time in the hospital is usually not an option as a new grad.