Wonder if anyone can offer advice as i am a bit worried. I am 6 weeks pregnant and the ultrasound scan is only showing a sack at the moment and looks like there is nothing inside it, have been told not to worry and that i will have another scan on friday which will show more, but easier to say don't worry than to put into practice. Is it normal to see only the sack at this stage does anyone know. Also have been told it may be eptopic pregnancy, am very confused and would welcome any advice