What could this change with my body be?

I have absolutely no clue what is going on. I have never been so horny in my entire life. Normally I would be fine with once a week (I know that's terrible, but I have a demanding job and I'm exhausted by the time I walk through the door.) This past week, granted it began during my ovulation cycle, it was like a light switched and I constantly am wanting to be intimate with my husband (like all hours of the day, everyday.) Has this ever happened to anyone or does anyone know what could be going on?