At what point during your pregnancy did you start preparing for your natural childbirth? I'm reading (very slowly) a couple of NCB books and I've hired a doula, and I will sign up for NCB classes (birth boot camp). But I haven't really done a whole lot of reading into it. I'm almost 18 weeks. Am I behind or ahead? I virtually know nothing about childbirth. This is my first and I've seen some terminology floating around, but I'm not sure exactly what it all means. Like the different stages and what not.