Birthing ball

Beth β€’ Mrs Winn 28/05/18 πŸ’ little lady due June 2019 πŸ‘ΆπŸ» πŸ’•πŸŒˆ

Anyone know when your supposed to start using a birthing ball? Am 29 weeks tomorrow and a few people have suggested getting one... I thought that was for the last month of pregnancy?