I been throwing up blood the past days on and off only in mornings im about 8-10 weeks pregnant and been getting cramps too also have been so nauseas?

Call your OB: You could have gastritis, but you could also be suffering something called mallory weiss tears from vomitting so often. You might benefit from a medication called diclegis that you take at bedtime to prevent morning nausea and vomitting. Other meds may help like using phenergan (promethazine). You really need to call your OB and mention the blood.