Jenna! Welcome to you; so glad to have you with us. I became enthralled with OB nursing upon the birth of my premature son who had a birth defect, nearly 11 years ago. The way those nurses treated us, I thought they were sainted. The made a very frightened firsttime mom feel confident I could effectively mother my son and NOT be afraid to do so. (of course they are not "sainted", but they were wonderful).
Anyhow, thus began my quest. Went back to school, knocked all my pre-req . classes out, and gained entry to nursing school in 1995. Graduated 1997 and the rest is where I am today. I do like what I do. It is NOT utopia, of course. It can be incredibly stressful at times, but I can't see myself doing anything else.
The answer to your question about techs is, yes we DO have them. I work in two different hospitals. Both use them. But, the ones WE use have their SCRUB TECH certification. (you have to go to technical school for this). I hear more and more OB units are going to that cause these people can scrub in on csections, tubals, D and C's and other ob-related surgeries, as well as perform administrative duties...... So you may want to ask if that is the case where you want to work. I have yet to work in a hospital OB unit where generic CNA's were used; all were CST's. Some places, however DO use aides; esp the larger hospitals. So check it out! If nothing else, you could shadow a nurse or two there, or volunteer to get a lay of the unit, so to speak, and get to know who works there.
also, check out the college/university where you would attend nursing school. See what they require in the way of prerequisite classes, transcripts, and such. Some nursing schools also require you to obtain your CNA (certified nurse assistant certificate) before you can be admitted. These are things you need to know so you don't waste time trying to get in.
I wish you luck! Any more questions, please PM me or ask here. We are glad to help you.