Need advice from Docs onboard!

I've been dating my girlfriend for the last 3 yrs, she has HIV which is virally suppressed and undetectable ( U-U ). She's been taking her meds (ART) and we've been sexually active. We're at that stage of making a decision to get married and start a family. We've genuinely been supporting each other and our lives are well off. We don't have any kids yet but we plan to get kids. With that said it means I'll have to have unprotected sex and my concern is will I get the virus? Will our baby be HIV positive?

Disclaimer: I don't need relationship advice.