i have had two periods in august ..from 17-20 and 30 aug-2nd sep,on 10th&24 august i had sex and took ipills,till now i havent got my period ..again last two days i had sex but with protection ...my nippples r smewat paining when i touch it and white discharge is somewhat more regular than usual last 30 days....what could be the reason for delay of period??should i wait for some time or take any pregnancy test?