I haven't had any leakage or much of a change in size although I have started wearing maternity bras as they are much more comfortable (am normally an underwire girl). One thing that I have noticed is that the nipples are standing to attention alot more even though I am warm - not cold!! I am assuming this is all part and parcel - very annoying as most people check out the bump then the boobs (the guys) and don't get past there. Very annoying!