You are going to have to give me a little more to work with than that.
What version of iOS is on your phone? Go to Settings > General > Version for that.
If you are on iOS 7, then as shown in the quote below from the link I provided, you would tap "Delete Account" -- if that is what your original concern was, note that means delete the account from this phone -- it won't affect your husband's phone.
If that isn't the issue, reply with more information about which step below you are at.
- Tap Settings > iCloud on your iOS device. If you see the option to sign in, you can change your Apple ID now.
- Scroll down and tap Sign Out. In iOS 7 or earlier, tap Delete Account. After you sign out of iCloud, you might not be able to access some of your data that's stored in iCloud until you sign in again. If you're part of a family, you'll need to sign back in to use Family Sharing.
- Choose Keep on My iPhone or Delete from My iPhone.
- Enter your password.
- Go to Settings > iCloud and enter your Apple ID and password.
- Tap Sign In.