Teresa,
I am feeling the same as you. I still don't think I have felt bump moving yet so that is making me feel a bit insecure. Although only a couple of weeks ago at my OB appointment he did a quick u/s and we saw bump happily jiggling around with a strong heart beat. Next week I will have my big scan on the 19th where I will be 19 weeks so I am looking forward to knowing bump is still ok in there. But I do know that I would prefer to have that definate, can't mistake it for anything else kicking feeling. All other symptoms are good so I just have to keep trusting God that bump is ok in there.