Q: why am i receiving my husbands iphone pictures and messages?

You are probably both using the same Apple ID, which can cause messages to be sent to multiple devices. Also, "My Photo Stream" will cause photos to appear on both.

I recommend that you both get your own Apple IDs, and if you would like to share purchases (download apps on both phones but only pay once), you can turn on Family Sharing.

Apple Support Pages:

Create an Apple ID: https://appleid.apple.com/account

Set Up Family Sharing: Set up Family Sharing - Apple Support

Sounds like you're sharing an appleID!

In order to rectify this, make sure your own appleID is signed into settings > iCloud, and settings > app and iTunes stores.