Im 19 years old and i am worried about an inverted nipple,should i be worried?

im 19 years old, and 8 months ago i gave birth to my first child,and ever since, my right nipple sometimes get inverted.....i never breast feed him,but i use to pump milk,i dont feel any pain in my breast and i dont have any lumps,my breast seems normal other than the inverted nipple,this has been going on for 8 months now,should i be worried? can someone please help me asap!!!