I haven't worked OB, but I've had kids, and I watch TV. So I'm qualified to render an opinion of questionable value.
And I do realize you didn't ask for advice, just wanted to know if they'd let you finish orientation. But you're here in the Forum, and we love fresh meat! So brace yourself for advice.
As far as skills go, in OB you're likely to be starting IV's, inserting foleys, handling emergencies, and honing your assessment, prioritizing and customer service skills, at the very least. No slight intended to OB nurses if I've left out major stuff that you do. Like I said, I don't do that kind of nursing.
I think after a year of OB you'll have a lot of very useful experience. And as I said before, do not underestimate the value of a workplace and coworkers that you enjoy, especially in that stressful first year with the steep learning curve.