Hi Doc I Had Unprotected Sex Last Jan 25 And

hi doc i had unprotected sex last jan 25 and i took nordette on jan 26 (first 4 pills) and 12 hours later (4 more pills) my period is due jan 30 but i haven't had it yet. is it possible that the ecp messed up my cycle? i didn't get any side effects right away after taking the pill but lately i have been experiencing disturbed sleep and mild dizziness. is it possible that these are possible side effects of taking nordette? thanks!