It's definitely worth doing Loula I used calm birthing techniques with DS2 & DD and had wonderful labours with them both. My birth story for DD is here if you would like to read my experience: https://www.bellybelly.com.au/forums...alm-birth.html .

Also, I highly recommend reading this thread here: why we feel pain in labor and pain relief methods. I didn't do a calmbirthing class, but found the info in this thread VERY helpful. I give it credit for my great labours