i m 24. had unprotected sex on 20 april. my period was due on 25-26 april. took unwanted72 on 22 april. experienced bleeding on 28 april. now missing periods . what could b the reason? could i b pregnant?

hey susan.... Thanks a ton for ua help...
i had another pregnancy test this morning. it turned out negative too.... now i want to know how long will i wait for the period to come??? i forgot to mention in the first post that i got some bleeding on 6th day after taking unwanted 72 and continued for two days what does that bleeding mean??? m i still safe from pregnancy ir thr is some problem?

thnx susan... i had 2 pregnancy tests done and both turned out negative.... now can u tell me some medicine to get my periods plz