doctor please do tell me that i had sex on 16th January and i tool ipill on that day only,after that i got my period on 22 January and it was normal as before but after that till today i didn't get my periods i was afraid of getting pregnant so i checked with prega news and it was negative but till now my periods are not there. 

please do tell what is happening with me. 

is this cause due to taking ipill or anything else?