Thanks again for the advice everyone. I guess I will just see what happens in the first few weeks then....

Just to answer some questions, yes, I have been fitted into maternity bras. I'm assuming I was fitted correctly but then I guess you never know. I did manage to try on nearly all the maternity bras in that size in the shop though before deciding on what I liked I felt a little sorry for the poor shop assistant

Oh, and I'm in Adelaide, so if anyone wants to recommend a good shop here that would be great!