I absolutely loved sitting on my Swiss ball when I was pregnant,” mum-of-one Annalise Beech tells GoodtoKnow. “As my pregnancy progressed, I loved the mobility it allowed me to bring to my hip flexors, and sitting on it also helped me to feel lighter somehow. “I also incorporated it into my pregnancy workouts, and particularly likely lying with my arms over the ball in a kneeling position. This helped to momentarily take the pressure off my back, which was a godsend in those final few weeks.