That's funny, why do you think that is? I threw up only once or twice with my first, and I think it happened because I ate too quickly. And it was later on too. I haven't thrown up yet with this one, which is nice since I hate it! But funny that you only seem to have one a pregnancy? And with girls too! Because I think this might be a girl, but they always say girls make you sick, and I'm not sick!