Possible IUGR

Hi i am so worried and sad. On my last ultrasound there was a weird measurement. Baby always was on the 70/80% percentile.

In that last scan at 26 weeks his head and femur were in the 70% percentile but his belly was at the 23% percentile. So my ob schedule another ultrasound at 28 weeks to see if that measurement was right or to see if my baby has Intra uterine growth restriction. In case that he has IUGR please I need to hear good ending stories 😭😭😭😭😭😭