Just keep moving your leg even when sitting. It might take another ay or so. I got terrible leg cramps with my first son.. I used to wake up almost screaming in agony

Bananas are supposed to help.. Pottastium is what you may be lacking. This is jusst from what I have read. Also sometimes to much softdrink can cause then.. and sometimes a lack of or to much salt.. Goolge leg cramps in pregnancy and see what you can find