Could be worth the extra expense if you are going to BF after bub is born as I found the maternity bras I wore in the last few months also served me all the way through till DS weaned at 11 months as I bought really good ones (just tried to see the brand but I've forgotten and the tag has worn off!) from Myer and a specialty bra shop. I was a 12D and went up to a 14E by the time I was 7 months pregnant. Sadly they have not really been the same since!