Hi all, I know someone who had a miscariage without knowing the cause maybe some of u have an idea i'll tell the story and plz let me know as she is very devistated about it. she had period like blood before its due by a week. then it comes and goes she thought she might be pregnant, took a test it was positive. then bleeding stopped everything was fine went for a scan fetus was fine with a heart beat. went for her 12 week scan but noticed bleeding before that , no heart beat and the baby stopped growing at 8 weeks! what could have been the cause i read in the forum about low hcg levels but what could cause it to be low? plz reply i appreciate ur cooperation.