K.H.
it honestly sounds like you had more then one pregnancy, and then one decided to jump ship, so to speak. typically, the rudimentary heart doesnt start beating until, i think, six to eight weeks. so, give it another week or two and if they cant find a heart beat by, at the latest, ten to twelve weeks, then
the fetus could be considered non viable. but dont start bawling yet, just sit tight for a few weeks. i know it aint easy, but try.
K. h.