clueless

Okay so me and my husband are best friends.    My hormones have been raging and he hasn't touched me in 2weeks.  No matter how hard I try.   We are very sexual people. We have sex at least 4-5 times week and sometimes more.   It's not like him to be like this.   Cheating isn't a factor cause we are together all the time.   I have gained some weight due to some health problems.  Could this be why??