I'm 11 weeks pregnant and I just threw up, which is normal for me, but this time it was black and chunky, and it made my throat bleed just a bit afterwards and I'm not sure if I should be concerned. I did eat a hamburger earlier in the day, and that's what my mom believes it was, but I'd like a second opinion. I feel fine now, not dizzy or anything like that, but I'm just worried.