Congratulations! Gobble, gobble!
You’re smart to ask. We don’t want people to listen to the childbirth imagery until the last few weeks of pregnancy, in case it has the effect of catalyzing contractions. (We’ve heard from midwives on occasion that they sometimes use this imagery to get things rolling, when labor is moving too slowly but they don’t want to whip out the Pitocin just yet..)
I just went looking for the directions we give on that audio, and here is what it says - we probably should have put this on both the pregnancy and the childbirth introductory instructions, but it’s only on the childbirth intro:
You don’t want to start listening too early in your pregnancy. Start at what you think will be the last couple weeks of your pregnancy. Remember, if you’ve been using your imagery for pregnancy all along, you’ve already gotten very good at this.
Pay attention to the parts that you need to hear and play them as often as you need to during your labor. During delivery, you’ll probably need to follow the specific suggestions of your doctor, midwife or nurse. So feel free to use this imagery to supplement your health care, in the way that works best for you.
Good luck to you! (And please don’t have Thanksgiving at your house this year!)