10 week hsv 2 type specific igg test accurate?

How reassure should I be with a 10 week negative test ? , I took one at 5 another at 10 both negative how sure should I be with my results ? Can it jump to positive In 2 weeks , the 12 week mark ?

Unlikely. You should be fine. Are your index values clearly in the negative and similar at 5 and 10 weeks?

It didn't give me exact numbers just <0.91 for 1st and <0.90 for second

It was through stdcheck

Should still be fine. The second test didn't jump to equivocal or positive, and 2.5 weeks is pretty good.