HELP Anterior placenta after csection

Heather • Married for 5 years 2 kids boy girl one otw boy blessed beyond words 😁😁

So my dr has me extremely worried I have an anterior placenta with two previous csections! He's worried my placenta has attached to my scar and I'll be delivering in Houston early! He told me it's life threatening I have another ultrasound at 30weeks to see if there's been any change has anyone had this happen ?! What was your outcome?!