Common side effects (affects less than 1 in 10 women): • Vaginal yeast infection, sometimes called thrush • Mood problems such as depression, change in mood or mood swings • Feeling dizzy • Migraine • Stomach pain or bloating • Being sick (vomiting) or diarrhoea • Acne, skin itching or skin irritation • Muscle spasms • Breast pain or enlargement • Uterine cramps, painful or heavy periods, bleeding between periods or vaginal discharge • Problems where the patch has been on the skin (such as redness, irritation, itching or rash) • Feeling tired or generally unwell • Weight gain.