This study aims to investigate a 6 week Pilates intervention on maternal and birthing outcomes. If you are a healthy woman and pregnant with your first baby, are between 18-25 weeks pregnant and booked in at St. Vincent’s Private Hospital Melbourne, you may be eligible to participate in this study. Participation requires your obstetrician’s approval.This project is being conducted by Ms Melissa Mazzarino under the supervision of Professor Meg Morris and Associate Professor Debra Kerr at the School of Allied Health at La Trobe University and has been approved by the Human Research Ethics Committee at La Trobe University HREC. If you are interested in participating in this study, or have any queries please contact the student investigator, Ms Melissa Mazzarino: (T: 03 9919 2024; E: melissa.mazzarino@vu.edu.au).