Ttc#2 but having a hard time...help me out!!

So my story is..i had my babygirl almost 3 yrs ago and the nurse gave me a depo shot b4 i left the hospital and i believe i was one of thoes girl that had a reaction to it.. Well long story short i developed blood clots in both my lungs but im all gud now no more meds after thoes long 6 months n 2 weeks in the hospital..but since me n my hubby have been 2gether almost a yr now we have been trying for months now to have a baby but no baby..he says it will happen but in my head i believe i dont think i kan have another baby after wat the depo shot put my body thru ...i think bout this everyday n cry a lot bout it too..is it going to happen or not???