I am a nurse and was at work and got one of the ultrasound techs to do an ultrasound. I am app. 6 weeks and 3 days according to my LMP. We could not see a heart beat today which from what I have read you should see a heart beat at 6 weeks!! I am pretty sure I am 6 weeks along. I should have started my period on Feb 15 and got a pos. test on the 12th which was early. I still have all of my pregnancy symptoms (sore bb's, hungry, peeing all of the time and nose bleeds which I only have when I am pregnant). Has anyone had similar experiences such as this. Please let me know, I am getting a little worried!!!!!