Does I-pill Cause Delayed Menstrual Cycle?

On jan 12 It was my gf 7day of period and we got together i touched her clitoris n vagina with my penis bt didnt had sex..in the mornin she took ipill
She had spottin after few days after takin ipill..she expected her periods on feb 6, bt its feb 10 now n she havent got her periods yet......cud she be pregnant n it not wen vl she get her periods