Negative Herpes Result after 6 months?

I took an IGG and IGM blood test for herpes 6 months after protected sex but one year after unprotected sex with the same person. I only had three separate encounters within this individual, two unprotected and one protected. Would these results be considered valid?

Yes if you had herpes , you body would already have antibodies in your system so you do not have herpes! 

If your'e 100% sure that they didn't sleep with another person in that time, yes. But if not, just do it again incase. It's always good to be sure