Big scare this Dr appointment..

So I went in for my Glucose test and routine visit.. Failed my glucose with a 192 level so will be going back for the 3 hr testing well the doctor comes into the room measures my belly and pulls out the fetal heart doppler she can't find the baby heartbeat!! She tried for 15 min couldn't find it she hooked me up to the fetal machine and contraction thingy and still struggles to find it.. So she leaves the room and comes back and tells me to go straight over to hospital .. By now I'm freaking out and crying thinking I lost my baby get to labor and delivery change Into the gown and they have me lay down and begin hooking me up to all sorts of gadgets they struggled to find heartbeat for 4-5 min and FINALLY I heard my babygirl heartbeat thumping loud as can be on monitor I have never felt such relief and happiness knowing my baby was ok.. I stayed at hospital for a few hours while they listened and checked everything but it all come out Good.. Thank you God!! So terrifying