Renee, hugs from me too. Being pg with a toddler is hard at the best of times.

One thing that might help is to sleep when DD sleeps (does she still sleep during the day?). At least then you are more refreshed to deal with things in the afternoons. Also, I always find that Jack will be better behaved and play by himself well if I have spent time with him first. Maybe if you spend 20 mins reading her a book or playing with her (it can be something quiet if you are not feeling well), then she might be happy to have some self time without the tanties.

Kids at that age are very sensitive to changes going on around them, and also to adult stress and emotions. I know how hard it is, but the happier you can act around her the more it might help.

I also think Chloe's idea of trying to get subsidised day care is a good one. The break would make a huge difference for you.

Good luck sweetie, and remember, you won't be pg forever. It will get better, just try to take one day (or one hour) at a time. And talk to your DH. If you can provide moral support and also do some things to help around the house it will make a big difference.