im 20 years old and iv been having some problems. for the past 3 months iv been having a period every other week and i just ended my period a couples days ago and my nipples have been erect and very sensitive for like 3 days. my fiance is concerned and i dont know what to even say to him about it. i was taking the ddepo shot for a little over a year and stopped doing it around april, would that have anything to do with it? im a little worried  but i dont want to waste time or money to go to the doctor if its nothing serious like my body just adjusting to hormone change? any ideas?