hey, I don't usually post on forums so hope im doing this right. Last week when i was 15 weeks I had a ultrasound to find out with gender my baby is, everything was all good. Today at 16 weeks 2 days I had a routine doctors appointment and she couldn't find heartbeat on doppler, she tried for about 10 minutes. She said not to worry but I can't help but worry.. I need to go back in 2 days. Is this normal or happened to anyone else?