I did wonder about anaphylactic shock - a similar thing happened to the dog of a friend of mine. It's just awful.
Yes, I'm ttc - if I can find the time/stay awake long enough to manage it!
Teaching is a great job (I love it) but if you're not careful it can eat you alive. Just remember - if something doesn't get done, it's not like being a brain surgeon - no-one will die! Ask yourself, 'What's the worst thing that could happen if I don't do this thing I've just been asked to do?' Usually the very worst thing might be that your head of dept gets a bit angsty. One trick I've learned over the years is avoiding the Corridor Ambush - you know, when you're wandering off to get a coffee and someone leaps on you, waving a piece of paper 'Aaaah!! There you are! I was just wondering if.....' At this point you have to stop them and say, 'Can you get back to me in ten minutes? [Please note, it's 'you get back to me', not 'I'll get back to you'] I've just got to do something urgently.' I swear - 9 times out of 10 they find someone else to do it or they send you an email which you can deal with in your own time. This works really well if you always carry a folder/diary/ piece of paper with you as you move around school. It makes you look busy, so people are less likely to ask you things!
You've got to look after yourself. NQT year is really really hard work even if you're not pregnant, and it's hard to filter out what's urgent and what can wait until after you've had a break. I would say that the only urgent thing you should be dealing with is your own health and that of your baby. Teaching is rather like trying to bail out a sinking oil tanker using a child's bucket with a hole in it; the workload is ridiculous and it's never going to go away so you need to come up with strategies to manage it without running yourself into the ground. You probably know all this anyway, but think about getting the kids to mark some of each other's work (tell your head of dept you're experimenting with Assessment for Learning), avoid re-inventing the wheel by checking to see who will share resources. Remember lessons don't have to have the production values of a West End show - you don't need to spend hours making whizzy Power Points when your objectives can be achieved with a marker pen and a white board. I don't know what subject you teach, but you might be able to work in ten minutes of private reading for the kids, which gives you ten minutes of peace to get yourself calm and sorted for whatever is coming next.
You might want to check what provision the school should make for you now you're pregnant. Ask one of the useful people in the school office - there'll be a policy on it somewhere. And speak to your mentor - it's what they're there for.
Sorry to ramble on; I think NQTs have a tough time of it and too much emphasis is put on being a 'perfect' teacher, when the reality is most of us who have been teaching for years are scraping by by the skin of our teeth and scrabbling along trying to keep up with everything. Chin up - it WILL get better, and you've got a lovely baby to look forward to.