Rommy - I feel your pain - literally!! I've just started getting leg cramps in the past week (along with restless legs!!) but mine aren't too painful thankfully.

Here's some info I found on the net:

Try our BabyCentre tip and eat a banana or drink a glass of milk before bed for a quick calcium and potassium boost. Don't take any herbal or vitamin supplements without first discussing it with a medical herbalist.

Here are some other tips for keeping muscle spasms at bay:
- Avoid standing or sitting with your legs crossed for long periods of time.
- Rotate your ankles and wiggle your toes when you sit, eat dinner, or watch TV.
- Stretch your calf muscles (see How to get rid of leg cramps, below) several times before you go to bed.

I eat a lot of bananas (one of my preggy cravings!) so it may explain why I've only started experiencing them now and why they aren't too painful. I hope that helps!