I am 8weeks pregnant. My first doctors appointment was yesterday. (This is my first pregnancy) The doctor said he could see the sack but there was no baby inside. Does this mean Im not pregnant anymore? Or is it something else?

How was the 8 weeks determined? With ultrasound or last period? It may be that you aren't as far along as you think and your doctor will likely do another ultrasound in a week or two. It may be that you did have an early loss.

Another ultrasound in a week or two will let you know either way. Hope you will have good news at that time.