thanks for your query.
Firstly you are messing up her normal menstrual cycle by frequently taking I pills.
I pill is for emergencies, and is not a substitute for regular contraception
The period pattern you describe is very haywire.
In this situation, even a home urine pregnancy
test would not be reliable.
I request you to consult a gynecologist, and have a thorough evaluation.
Though the irregular cycles are most probably an effect of two I pills in one month.
You also can consult the doctor about what contraception to use in future.