Hi and Welcome to YT!!! You will find tons of info here on this topic since we have all been there
I just recently used a mixture someone posted here of Hydrogen Peroxide, Baking Soda, and Dish soap and it worked wonders! I could smell it but not see it so I realy just sprayed down the whole section of carpet. I also use Nature's Miracle for stains.
I can't wait to see pictures of your baby!!