Could Missing Periods Be Due To Pregnancy?

hello sir i m 18 yrs old f and i have done an intercourse with my boyfriend on 4th feb during the first day of my period and have taken an i-pill at the same time of the second day(5th feb) . And i m not getting my periods back and this is 9th march now. is there any condition to get pregnant. sir pls help me i dont want to get pregnant.
plss tell me the way to abort 8 weeks pregnancy ..