I took the depo birth control shot about 4 days ago, but before that I was worried about being pregnant because I was late 2 weeks on my period. I started bleeding lightly and then it got darker and heavier. I was getting really bad cramps and ive never gotten like that before also back pains so i thought it was just a bad period. Next night around 4:30am I woke up and ran to the bathroom and a blood clot came out, i didnt think anything if it. I went see my doctor she says those were signs of miscarriage & gave me the depo shot right away. Now my back hurts, when i sleep on my side it gets real sore i cant carry my son sometimes or lay a certain way & my stomach has real sharp pains i can barely laugh sometimes. What could that mean? Or is it just symptoms?