is it normall?

๐’ถ ๐“‚ ๐’พ ๐‘’ ๐‘’ โ€ข MUM OF TWO BEATIFULL BABYS boy 7years girl 5 years

18weeks and my bellys sore is it baby getting bigger ect sore when i bend down ect shes still moving ect so not concerned ? anyone else expriencing this ?