My baby is mearing really tiny apparently i am 31 weeks and 3days what do u think will happen

I am 31wks and 3 days i had my 20week scan and she was fine then i had a growthing scan back in feb and they sed she was fine even though she was measuring 25weeks and i was 28weeks i had a midwife app wednesday gone she sed my baby was reallt tiny but shell wait to see what my consultant says on the 17th as i have fibroids and need to be monitored then she was measuring 27weeks and i was 31 exacly just wondering what will happen on my upcoming scan if they styl think shes tiny.