COuld she be pregnant

Patient: Two weeks ago tomorrow(12/13) my girlfriend and i had a few seconds of unprotected sex. On 21st of december my girlfriend got her period she was suppose to get it 23rd and then it ended 25th she has a little sore throat, could she be pregnant

Doctor: Hello,If your partner has had her menses after the intercourse you both had, then there is no concern about pregnancy and she is safe. If she would have been pregnant , she would have missed her periods completely.The sore throat is probably due to an infection and nor related to pregnancy in any way.I hope i have answered your query,regards