What is hsv1?

Alicia

Me and my sister found out we were pregnant at the same time and only a week apart. She’s freaking out about hsv1 at her results today but I told her it’s just oral herpes and doesn’t mean she has an Std like herpes. She’s asked if mine ever came up positive and I told her no but that doesn’t mean I haven’t had it and that the test may not always be positive. Am I right or wrong???