Novelon is a oral contraceptive pill which contains both estrogen and progesterone(ethinyl estradiol
0.03mg, desogestrel 0.15mg).
It is having side effects like,
Breast tenderness and enlargement,
Cramping abdominal pain
Change in appetite, vomitings,
Vaginal spotting etc.
According to some studies oral contraceptives may cause estrogen dependent cancers like breast cancer
But the incidence is very low. That too if used for prolonged periods
and higher doses.
As this is low dose and with limit period of taking, no need to worry.