Light period 2 weeks ago, few days ago i had vaginal discharge with some light red blood in it. only lasted about 10 min. any idea what it could be?

Many causes: Vaginal discharge requires an examination to determine the cause and treatment. Bacterial vaginosis is the most common cause and often has a vaginal odor. Vaginal itching can be a sign of a yeast infection. Sometimes vaginal discharge can be a sign of a sexual transmitted infection. Testing is important to determine the treatment and keep you and your partner safe.

Many thoughts: Could just be irregular period and some breakthrough blood. Check a pregnancy test. If negative just be patient for the cycle to regulate itself. If persists see your doctor for further evaluation