Possibly pregnant and had orangish discharge day after rough sex. could this e caused from him hitting my cervix?

Depends: Discharge in a woman can be abnormal, normal, or transitional. It all depends on your history. It may be important for you to see a provider to be sure. They may be able to run tests on the discharge and obtain a complete history. Some common causes of discharge can be yeast, bacterial vaginosis or std's even in the setting of no discomfort or smell.