Many home-improvement projects are unsuitable for expectant mothers. Painting exposes you to fumes as well as requires a lot of bending, stretching and climbing ladders. Any project that involves using a product with strong fumes should be avoided, which often means no staining or clear coating.
Also, avoid projects that require heavy lifting, which could strain your back and womb. It can be frustrating being relegated to the sofa instead of hands-on with the project. But, it's okay tackle safe tasks like planning, choosing color swatches and supervising the work.