First of all congrats on being pregnant! Your cats will be fine when the baby comes. I have had my cat for 14 years and have gotten married and had 3 kids since then and she gets along fine with all of them. There may be a short adjustment period until they get used to the baby but as long as you keep giving them attention too(just like regular siblings) they should be fine. You should have your husband clean the litterbox so you don't get toxoplasmosis otherwise the cats will be fine around the baby until the baby learns to crawl and chases after them! My cat learned to find higher perches and better hiding places then! Your cats and baby should end up being great friends, napping and playing together and you will get lots of great photos!
Yumyum, where was that thread that you did on this subject? I remember replying to it, it may be helpful for Mira to check it out too.