What to do?

My first TVS at 8 weeks no heart beat po ang aking baby (fetal demise). I did second opinion, after 4 weeks did another ultra sound today, no heart beat padin po and my baby is really gone. :'( What to do? The OB didnt tell me what to do. Will the fetus come out naturally? Meron po bang iinumin? Please help. Maraming salamat po.