Please don't get me wrong, it is not horrible by any means, so, really I'm just whiny, but it seems my pregnant body felt the need to remind me that this life isn't always so cut and dry. First or second trimester is not significant. If my belly wants to be nauseated (though I'm not sure why it would, it's just as miserable as the rest of me right now), it will be. If it wants to demand more rest than the 9+ hours I get every night, it will do as it darn well pleases.
Take that, pregnancy calendar.