I worked for 7+ years at the largest travel .com For the most part it was all from home (apart from the odd meeting in London). They knew I had a baby when I started and nobody minded.. As long as I had my DD in childcare when I was in scheduled meetings nobody bat an eyelid.
If there was an unexpected meeting, it was not uncommon for children, pets, etc (of colleagues or mine) to interrupt meetings.
I'm thinking of going into a similar arrangement with my employer, but everybody seems to think it's a complete no-no and that I shouldn't even be allowed. My boss knows that I'm having a baby, but he knows my workload is flexible (can easily be done in the evenings / nap time) and hasn't said a thing about childcare provision.
The company is small and he's Australian so maybe it's a mix of inexperience in his part and my extra flexible previous experience.