I feel like my stomach hasn't grown

Crystal • 25, Married & Mum of two boys 🤍
Hey all I'm 19 weeks 2 days and I haven't felt my baby move (well I think I haven't) and I feel as if sometimes my belly looks smaller than other times I don't think it has really grown I'll show photos below.
I'm just worried my baby isn't growing he always has such a strong heart beat but I don't have a scan till this Friday the 26th August and it's killing me to wait I could just be worrying but I dunno