Symptoms of PCOS include irregular periods (or no periods at all), increased hair growth, acne, obesity and difficulty falling pregnant. You might experience very heavy yet infrequent periods, along with pain, bloating and tenderness.

Imbalances in hormonal production affect ovulation, which may occur irregularly or not at all. There may also be a mild increase in testosterone levels, causing darker and thicker hair growth and acne.

Hormonal imbalances also cause problems with sugar metabolism, leading to weight gain – and a higher risk of gestational diabetes if you fall pregnant.