I'm 21 years old, 5'6", 135 lbs., and 20 weeks pregnant. I went to the ER because I was throwing up a lot of blood and they told me that it was normal to have blood streaks sometimes, but it wasn't just streaks it was A LOT of blood. They seemed reluctant to take me seriously. Now it's one night later and I'm throwing up more blood with the addition of clots. Should I go back? Or wait to make an appointment?