My girlfriend had her period about 2 weeks ago, and today she noticed blood while urinating. what does this mean?

Many possibilities: Most women ovulate about two weeks after their periods. At the time of ovulation, many women will have spotting or light bleeding. This may be what she is experiencing. Other possibilities could be a bladder infection, vaginal infection, polyps, or fibroids. If she continues to experience breakthrough bleeding, she should see her doctor.