Again, super similar position! I applied for the CMA program when I was pregnant so I could have a "better career". That didn't work out for me and I'm back at it. But, because your baby needs you right now, it makes more sense to wait till she/he gets a little older. I started my pre reqs when my baby was 1. He's now 4 and I haven't really had to sacrifice much of my time doing pre reqs. It it nursing school that really gets us. But if you look at it this way, whenever you do get into nursing school, you will sacrifice time with your family/friends, etc. to work on your studies. Spend time with that precious baby for now! I think your making a great decision!
Also, you could take online classes from any community college in your area while you stay at home with your baby. I've don't some of my pre reqs online. At my school, the pre reqs you absolutely need before you can apply for LVN is Eng Comp and rhetoric, Gen Psych, and I think A&P I. These are classes you will need before you apply to any of the nursing programs. I would def look into that, so you don't feel like you could be working on something and your not while your at home with baby.
I know how it feels to be in your position, everything just seems too far away and you just wanna start now! Trust me, I totally understand. It will come. Seems like your a pretty dedicated person and to be a nurse is what you want to really do. Good Luck girl!