What Are The Side Effects Of Depo Provera Injection?

took plan b pill and depo shot in same day. It has been six days later and I still feel, nauseous, wanting to throw up but turns more into spit up, bloating, lower abdominal cramps, adverse to smells, sore breast etc... Am I pregnant? I was ovulating when I took the plan b pill and depo shot almost 15 hours later.