Hi there! I'm not much older than you, only by 10 years (I know, it probably seems ancient to you!). Anyways, when I was about 14 I decided I wanted to be a nurse. My grandmother was a nurse, and I was able to see a bitty bit of what she did as a retired nurse (working for an insurance co). That led to me asking her about nursing. She was a maternity nurse who was also during her career an OB instructor and a manager of a maternity ward. She never pressured me to do nursing, nonetheless OB/GYN. But she did encourage me to volunteer and learn as much about it as possible. So I was a jr. vol for awhile, and applied for as many opportunities as I could. Every time I got around women's health, I felt a connection. I LOVED labor and delivery, and will never forget the first birth I witnessed.
When I graduated nursing school, I went to work on a GYN/GYN oncology floor. It was very rewarding for me, and I was there for a few years. I moved a little too fast towards management there for my taste and discovered it wasn't for me. After a lot of prayers, the decision was easy and very clear (duh) that I needed to do L&D! So today was my first day off orientation there. I'm learning so much, and feel very lucky to be a part of these every day miracles.
Now, just to let you know, there is more to women's health than L&D. I would not trade my GYN experience for the world. Especially the oncology piece of it. You will learn skills there you wouldn't necessarily in OB. That could be your "med-surg" experience that you will be encouraged to get. And these onc patients can touch your life like you could never imagine.
When you're a nurse, you get to know and see so many intimate things about people/strangers that you never would otherwise. And it is a great thing.
I would strongly encourage exploring nursing for you, and whether or not you do OB/GYN, you will always have a job, and will always have options in that job. Even if all you want is desk work (nothing wrong w/that at all! but you may have to do some unit work first). There are so many opportunities, such as research, teaching, quality assurance, clinical specialties, private practice, legal, etc, the list could go on and on...
Nursing school is tough, and so is the job, but the rewards are so much greater!
Good luck to you!