Have you discuss with husband that you need help? Mom or mil able to help to look after #1 during the day? At least for a month till you feel better.
Are you intend to send #1 to childcare too?
Yes please avoid medication during 1st trim. You need some rest in between.
Is sour palm snacks helps your nausea? Or any snacks that helps you? Mine was chocolate milk, apple juice etc :)