Cramps During Climax

So embarrassing, but has anyone else experienced leg cramps in the middle of their orgasms? It doesn’t happen super often, and it’s usually on my 3rd or 4th one, so it’s not getting in the way of all my fun. However, it sometimes kills the mood, and I feel bad for my husband when we are trying to have a good time and I suddenly have to push off of him because my thigh or calf is seizing up. Help?