Firstly, congratulations! Some pantang larang is not to tell others during the first trimester but since you already did for good purposes! I think you listed most of the things not to do!

taking the stairs... driving a car... going for a swim... walking slightly fast... going for a movie... drinking carbonated drinks... and so on..

Some of it, can do but please, with care. We also avoided cinema because we believed that confined space may contain bacteria and viruses not good for our body.