If you have been struggling with nausea, that should slowly begin to ebb away.
Additionally, your body will require extra fluids as the increased blood circulation can result in the hands and feet feeling warmer than usual. Weight gain is also common. However, if you have vomited a lot during the first trimester, you may have lost weight. Both are common and usually nothing to worry about. Your body has been harvesting all the nutrition long before the pregnancy so there is plenty of resources for both you and the baby.