Yogi, you have plenty of time to register. Wait till at least 6 months, things change and new products come on the market all the time. So wait a while.
You probably won’t feel anything till at least the end of the 4th or somewhere in the 5th month and that will just be like a butterfly fluttering. As the baby grows you will feel some other things like rolling, hiccups and kicking when it is bigger and more developed. You can track the baby’s growth online as well as what you should expect.