I went to the Dr. yesterday for my first sono... and then she sent me to a radiologist place to confirm.. My LMP was 7 w4days.. I am measuring up at 6W5D... There are definetly two sacs (TWINS).. but she is very concerned b/c there heartbeats are very slow 80 and 82.. She said I have a 50/50 chance... Did any one have real slow heartbeats and everything ended up working out... I have to go for another sono in a week.... I really cant wait a week.. I am freakin out.....