that was I'm not sure* how your gf is comfortale having sex again so soon after her incident.
I would not recommend it. If there was a UTI or STI, both are very irratable and can also trigger irratation during sex. If you speak with your dr, phamacist, I'm sure they would advise you to avoid intercouse while taking the medication especially with UTI. Just wait until Monday. Also, I'm not how your gf is comfortable about having sex so recently since her taken-advantage-of situation. good luck.