maybe she is prego again just take her to the doctor.
If she is vomiting blood she needs to go to the ER.
From my experience working in hospitals, clinics, labs and whatnot...I can help you with what I know. Vomiting yellow bile and some blood isn't necessarily that bad of a situation. If she is vomiting yellow bile, it may be because she has nothing else in her stomach such as food or other liquids. It's kind of like dry heaving, but you still have the acid in your stomach. Especially if she is having alot of heartburn, that means her stomach is producing an excess amount of acid, therefore that is the yellow bile she is heaving. Now as for the blood...if it is small amounts, it may be because as she is vomiting, especially bile, it will irritate the esophogus and cause some lesions. Also, that much heaving can cause some minor bleeding. The thing that you guys really need to watch for is how much blood she is vomiting, and what it looks like. If she is vomiting more than a tablespoon, or it looks like coffee grounds, then you need to take her to the ER because she sould have some sort of internal bleeding, or a bleeding ulcer....which the ulcer would be more of a guess becuase of the heartburn and vomiting. Make sure she gets plenty of fluids, because all of that vomiting will make her dehydrated. even if she has to force down a teaspoon at a time. If you guys are not using any sort of protection, she may indeed be pregnant again, so a test would be a good thing to do. I would defintely make an appointment with her physician, though, just to get the heartburn and vomiting under control. I hope this has helped you! Good luck!
thats good advice Tara :) but if you dont want children maybe you should be a little bit more cautious with protection :) good luck i hope your gf is ok. and i hope you get the outcome you want :)