Threatened miscarriage!

Anyone been told that they have a threatened miscarriage? then stopped bleeding and cramping altogether and had your levels rise and go on to have a normal pregnancy? My friend is almost 5 weeks pregnant and went to the ER for bleeding and cramping and they tested her HCG and it was at 176 which was low I guess but they said they believe she is miscarrying but they will recheck her levels Monday to see if they doubled. She has since stopped bleeding and cramping altogether. The bleeding was 1 gush and then heavier than normal spotting but not even close to soaking a pad or anything and then that night it stopped and so did the cramps.