Calcium Supplements for leg cramps???

Hi. I am 5 months pregnant. I suffer from leg cramps. I heard calcium supplements can prevent leg cramps??? Is that true? I am taking calcium supplements, but I still have the cramps. Why?

Hi. I am pregnant and I have leg cramps too. Nobody really knows why. I guess because of the weight. I think my leg muscles are just tired from carrying around all of my extra weight. My doc said leg cramps may get worse as my pregnancy progresses. I mostly feel them during night. He gave me some tips to prevent these cramps. I have to avoid prolonged standing and sitting, and I have to walk every day. Warm bath is really effective. He said calcium will not solve my problem. I am taking enough calcium too, but he said calcium doesn`t prevent leg cramps during pregnancy.