in the early stages, when you're tired and feel (and look IME)like shite no-one offers you any help because without a bump they just don't know you're PG.
Even people who do know don't offer.
But in the late stages when you feel good, aren't tired (well not as much), look lovely and blooming and are enjoying the pregnancy everyone treats you like you're ill.
I can remember saying to various people "Errrr I'm pregnant...not ill" or "I can actually do that myslef you know....!!??"
I want people to do all my jobs now, I can do them when I big and fat but right now the last thing I want to do it cook, clean and supervise the kids.
Rant over.