Growth restriction

My baby was diagnosed with IUGR today in the third trimester (at 34 weeks, she’s measuring in the 7th percentile, so around 4 lb —> closer to 32 weeks) and I’m trying not to freak out. I have no risk factors for IUGR and was really surprised, only got the scan because fundal height was measuring a little small in the past few weeks when prior ultrasound measurements were normal. The MFM doctor said it’s most likely placental insufficiency vs maybe also a component of the baby being constitutionally small because I’m only 5’1”. Her BPP and all other tests were normal so I’m hoping it’s not too serious and that she has a chance to catch up on growth. Going to get weekly ultrasounds from now on and likely have an induction at 38-39 weeks. I’m just wondering if this has happened to anyone else and what are the chances the measurements are inaccurate or that she magically starts growing at a faster rate in the last few weeks? I work in pediatrics and take care of babies, including NICU babies, so I’m medically familiar with the potential complications of being low birth weight but have not been on this side of things before (first pregnancy). I am trying not to let my mind race too much or wonder what I did wrong because I rationally know there’s no way of knowing why this happened, but it’s still stressful. 😥 Any thoughts would be appreciated.