they do check....maybe a different way....call back or go in.
the best way is a blood test ... 99.9999% accurate if not 100%
Actually most places do. Especially where young parents are involved. At least that is the case in the area that I live. I don't think that swabs are the most accurate and vaginally isn't the most common. In fact that best way to be screened is doing a blood test.