Had pervious miscarriage pregnant again but having some complication

Patient: I had pervious missed abortion im may2011 im pregnant again with 8week but ‘tvs show 5week 3days i am on proluton depot ing 250mg sustan 100mg duvadilan10mg my sonography report show no fetal pole yolk sac of 3mm and mean sac 10mm good choriodecidual reaction i am quite sacred what is problem why? fetal pole is not present we are waiting for baby eagerly