Low growth in baby

Rachel • Momma to a 2 yr old baby girl and pregnant with my second

I have high blood pressure with this pregnancy so I’ve been getting growth scans every four weeks since I was 20 weeks. I just went today, 31+4 weeks and my daughter was measuring in the 18th percentile. When I went four weeks ago, 27+1 weeks, she was measuring in the 27th percentile. I have to go back in three weeks for a follow up ultrasound to see if she’s growing on track like she’s supposed to or if she’s still behind. Has anyone experienced this? Do they wait until 37 weeks to induce or do they do it sooner?