Experiencing a dark brown vaginal discharge/spotting since 2 weeks. with missed period. today i saw a bright red discharge/spotting after intercourse?

Need to see a doctor: You need to be evaluated by your primary care doctor or a gynecologist to determine whether or not your are pregnant. Your symptoms can also be from a vaginal or cervical infection. The doctor will be able to perform the necessary tests, diagnose and provide you the appropriate treatment(s) if infection is the cause. If you have a fever you need to be seen today in an emergency room near you.