You might have yeast infection (white clumpy discharge) but to confirm you should do a vaginal smear to see the germs or the yeast,because you have yellow discharge and than bloody.
Monistat is for the yeast infection but you should consult with your doctor for the medication because the yeast infection are very recurrent if do not medicate in the right way.
Blood discharge ,may be menstruation
or problems with infection.
If you have 2 years that you have started intercourse you should do a PAP smear
Take care of your self