Although you might not be showing much just yet, you’re likely beginning to feel pregnant. Thanks to all of the hormonal changes your body has been experiencing, you’re probably starting to feel some fatigue and nausea set in. Your uterus is beginning to expand, which can cause your pelvis to tilt anteriorly and your hamstrings and glutes to lengthen and weaken. With these changes come a decreased sense of balance, endurance and coordination. The goal of prenatal Pilates is to help counteract these issues.