hives can be caused by lots of things. A friend of mine gets them from too much vitamin C. However I read one artile that listed pregnancy itself as a cuase of hives.

I've been getting headaches, pretty much since the start of week thirteen. So far they have not been too bad.

Tiredness & emotional outbursts, crying etc

calf cramps, difficulty sleeping (getting to sleep is easy, staying asleep is harder). I usually sleep on my back as I suffer back pain & this is ordinarily the most comfortable sleeping position. Have been trying to sleep on my left side, using pillow between/below my knees. this is OK for 3-4 hours, then I wake up.