Got my 3rd depo shot 2/9/15. had sex a couple times the following days. now sore nipple and discharge from it. am i preg or is this a side effect of d?

Pregnancy unlikely: DepoProvera works well, so pregnancy is unlikely. However, one can do a pregnancy test. Home pregnancy tests are very accurate and not affected by foods, herbs, common illnesses, sexually transmitted diseases, or medications. A correctly done urine test gives a reliable result 3 weeks after sex (3 weeks after when conception might have happened).