This question is asked a lot. The easy answer is YES: If you are growing a baby in your uterus, hypnobirthing is for you.
It doesn't matter how your baby is going to make an appearance, or when or with what help. It doesn't matter if you're planning a home water birth, an induction in hospital or a Caesarean section. What matters is that you are fully informed and feeling confident, armed with practical tools to help you remain calm and relaxed throughout and empowered to make the right decisions for you and your baby. It matters that for the rest of your life, when you reflect on your birth, you remember it as an incredible and empowering experience, rather than a traumatic one.
Hypnobirthing will help with that. There is no scenario where what you have learnt won't help you.