Could there be something wrong if you are 20 weeks pregnant with your third child and you haven't felt your baby move like you did with your last child?
It is impossible to say. Only an ultrasound could make you relaxed, I suppose. Please see your doctor if you are worried. Good luck to you! I am sure things are just fine, but it's VERY IMPORTANT you work with your doctor. Sometimes you can't feel the baby move until you are a little further along. You may experience "flutters" at first. You should be seeing your doctor off and on and if you have a problem bothering you then please communicate those fears to your doctor. If you have been going to the doctor as you should be he/she would certainly have had you in for tests if they thought something was wrong.