My 8 month old son swallowed a coin either a dime or a penny.  I think.  It was flat round and hard. And I don't know what it was.  I tried as hard as I could to get it out of his mouth but he bit me super hard to where I screamed and pulled my finger out then I put it back in to get it out, but it was gone! I need advice. I already called his doctor and left a message waiting for a call back.  Please someone advice is needed!!