Girls, hello everyone, I'd like to hear your experience if you have an…

Girls, hello everyone, I'd like to hear your experience if you have any (if it happened). We were diagnosed with fetal growth restriction at week 13. Sent for genetic testing, they didn't say much and prescribed TRAMBAAS, and sent us out to walk until week 20. I am small myself and weighed 40 kg before pregnancy, now at 17 weeks I weigh 43 kg, I'm very worried that when I see the doctor there will be no changes ( Has anyone experienced this?