I'm pretty sure it was just the application syringe she was using that irriated her and cause the bleeding. The application syringe can not hurt the baby so don't worry about that and if the bleeding stopped shortly after she really has nothing to worry about. Bleeding during pregnancy doesn't always mean there is a problem. I bled off and on until i was 11 weeks pregnant then it stopped.
All OB's have an on call nurse, give them a call...they will walk you through anything it could be. I bled everytime after internal exam/ultrasound with my daughter and she's now a happy 20month old.
Best of luck!
I know you can use a similar applicator for thrush medicine and you are advised to insert with fingers rather than applicator when preg due to the sensitivity of your cervix etc and the applicator can cause bleeding!
If the dr did any type of physical exam today it could be that the application process has just irritated her cervix and caused it to bleed a little. It happened to me after an exam but then stopped a little after.
Always best practice, call an advice nurse. Hope everything is ok!
It's the weekend so I am pretty sure her doctors office isnt open but there may be a doctor on call. She could also go to a women's hospital and they will check her out and check on the baby.