Seems like a rookie question but without a bra store here I am lost! Anyway...

I *thought* I had the right size maternity bra but I guess things change after breastfeeding settles down. My boobs frustratingly always fall out in the middle, so I thought it was just my poor boobs getting their sag on. I tightened the back and straps as far as they would go and no luck! They fall out when I lie down too. So is my bra too big or too small?! After all my babies I never lost cup size which confuses me needing to go bigger.

When i'm in Melbourne next I am sooo getting a proper, fitted bra.... Sick of having to check myself.... Gah!