Can having a baby permanently change your body odor?

Probably. I know of any real data, but lots of women (including my wife) have told me that they noticed a change in bodily odors after delivering babies -- and it makes sense when you think of all the profound hormonal changes that take place during pregnancy. Honestly, my wife smells the same to me as she did prior to having our children - but i'm a guy, what do I know?