You still feel pregnant because the hormones of pregnancy
are still in your system making you feel this way. This will resolve soon. Also, you are likely feeling your uterus
contracting and shrinking down to pre-pregnancy size, thus giving you the sensation that something is moving and kicking.
Miscarriage is a very traumatic event for most women, and it is possible that you do not want to accept the loss therefore your mind is sending signals to your body which you are interpreting as a baby moving. If you continue to feel this way seek support from your partner, family, friends, or a support group. Also follow up with your doctor to make sure all the products of conception have passed.
Again I am sorry for your loss. Take good care.