im 22 years old and recently decided to stop getting my depo shot due to intense knee and chest pain . i only had 2 shots (1st in august and 2nd in november) my third shot was due late jan early feb. i have been experiencing pregnancy symptoms and have been having unprotected sex. so am i pregnant already or are my symptoms ( tiredness , hungry, food aversions, sore breast, nausea and some recent vomitng) due to depo withdrawal? any suggestions and comments are very much welcome.