late period

HI,

I just finished with my first pack of Errin so i asked the pharmacist if i should take the first pill on my second set but the pharmacist told me that if my period will come on sunday, i can take the first pill bu not i should wait till the next sunday to take it. my problem is that my period did noot come and i am so worried coz i did not take the pill from sunday and monday.my husband noticed it so he told me to take my pills even if i don't have my period coz i might gonna get pregnant.we just had sex last sunday and i did not take the pill that night and the next night...is their a possibility that i'm pregnant?