Maternity pictures.. When?

Star • My name is star.. 26 years young 😘 Married & have 3 beautiful baby girls (2 yr old Twins and a newborn singleton)🎀😍 #GirlMom #MomaBear
im havin fraternal twin girls. im due around Nov12th.. just to be safe im having my shower Aug13th.. When should ii do Maternity pics?  im 21 weeks at the moment 👣👣🎀🎀😃