IUGR at 38 weeks?

Hi ladies, this is my second pregnancy. Generally, my little girl has been lower on the weight percentile on all her ultrasounds. Doc said this is nothing major to worry about it's just that she is a petite baby. At 37 weeks gestational weight was 5lb 13 oz (which is 17%) and now I have asked to do an ultrasound next week (at 39) to see if growth has happened or still plateauing in which case they will most likely induce me. Would love to hear any similar experience you guys have had. Also, at the same time I am 2cm dilated and mucous plug is gone so wondering if I will make it to the ultrasound on Monday!