I agree that if you want a little something, you should whack him over the head with hints. Sure, it takes some of the romance out, but boys are boys and they don't always think about these things. I can think of one time that I've been truly surprised by flowers -- and that was after nearly 4 years of "training"! Usually, I've hinted pretty heavily (or outrighr asked).
I think I started dropping "just gave birth gift" hints a year before I was even pregnant!