I have suffered with very bad cramp many years ago, it got so bad that I was limping like a fool(no comments from Rindi and Neil please
) for days afterwards. I was in hospital around 16 years ago and I had a real attack of cramp in the middle of the night and was prescribed Quinine sulphate, to be taken at bedtime, I am still on it today and have had little trouble since. Whether this is any good for you ema during your pregnancy I don't know, but it sure works for me