postinor 2 - SUPER URGENT !!! before its too late

dear doctor i need you SUPER URGENT help i had sex AND the condom was taken off during the sex the girl took postinor 2 after 2 days - we had the same problem - she took it again. stupiedly - we had the same mistake 3rd time at the same week can she take postinor 2 the 3rd time ? will it harm her in any way ? can it help OR work ? please advise if there is nother information regards etl

she can though i do not understand why not to use something safer dr krissi