Right after the period has a high chance to get pregnant due to the ovulation cycle.
If you want to be really sure, you should suggest she take the morning-after pills. (you didn't really have intercourse, most likely she didn't get pregnant, even though so, there is still little chance to get pregnant.)

Currently, there is an online service where you can get pills without physically going to the pharmacy.
However, it is suggested to consult with a pharmacist before you take pills.