Sorry if this has been answered already, but I'll admit, feelin' a bit lazy & didn't want to read through the whole thing, & figured I'd offer what little input I have.
Our dean actually spoke to us fairly in depth about it, & his personal advice is that probably the best time to plan on having a baby IN vet school, would be to try & time it so baby is born right after the end of the 1st year. This way you have plenty of time to be home with the little one after birth over the summer & by the time the really intensive part (well, we all know it's ALL intensive) near 3rd & especially 4th year clinicals they're a little bit older.
Of course, a large part will depend on how much support you have at home & if you have extended family in the area for help & just overall mental support, but he did say he's had students be successful parents & students in pretty much all years & situations. Additionally, I'm sure it varies some by school, as some are more accommodating than others. At UT they seem to be very good about it, & have even allowed students to take a year off, or I believe he even mentioned a student taking somewhat "part time" classes, although I forget exact details as to how that would have worked. I'm in my first year, & have 2 mommas-to-be in my class at the moment, (we actually just had a baby shower for them this week!) and everyone has tried to be very accommodating. One is due right around finals, & the dean has already told her not to worry about it, & if she ends up missing any finals she can take care of stuff over summer.
As far as anatomy lab, at least here, it is not a problem, & our mom's just wore the crazy gas mask looking respirators sunstorm was talking about.
I think if it is something you really want, then you can make it happen, but that it definitely involves a lot of planning & a lot of sacrifices. Good luck with everything!