 [ Symptoms ] could i be pregnant even with a negitive pregnancy test  i had unprotected sex on may 23rd and june 1st my period started june 5th it started out with brown spotting and the second day it was a little heavy but not nearly as bad as usual after the heavy day it was light pink spotting only when i whipped for two days i have been having lower stomach cramps and feeling like i am going to be sick my nipples have also been hurting and i have have been emotional i took a test on june 11th and it was negative [ Disease ] blood coming from the stomach will be black because of the hydrochloric acid stools will be black as well in most cases bright red blood can be from the esophagus throat or even the nose clearly if you are vomiting blood or think you are vomiting blood prompt medical evaluation is recommended