Leg Cramps

Theresa
So, I can't be the only one. I'm 26 weeks with my first and so far just a little aching in my legs if I'm on them all day long.
The other morning, I was stretching in bed and BAM! My left leg cramped so bad, seriously painful! This morning my right leg cramped horribly.
Now they are both really sore and feel like at any moment they will cramp up again.
I've tried drinking water, but doesn't seem to help much. Anyone else experience this? Should it be something to be concerned about?