Heartbeat of fetus is not observed , help is asked

Patient: Today 12 SEPT.2011 Doctor told that pregnancy test is positive but the fetus is not showing heartbeats.Process of ICSI was done and good embryoes were transferred on 09 aug 2011.I want help from you that what can develope heartbeats in the fetus.Rest all the reports are good as per doctor.the medicine which has been given astab. folvo 5 mg 1daily, tab ASA 50 mg 1 daily, cap evion 200mg 1daily,tab progynova 2mg BD,TAB GESTONE 400mg 2 daily,dexamatosone .25mg daily.please tell me what to do in such situation.