Have you noticed unusual behavior in your pup lately? Is he more clingy and is there increased barking and howling?
This is likely connected to your return to work. The parent of a big Labrador retriever says he sits by the door and whines when she leaves the house. When she returns, he follows her everywhere she goes. The reality is that your pup is reacting to the change in routine. He is undergoing separation anxiety which may be manifest in behavior such as urinating on beds and rugs or destroying items in the house.
Lori Teller, a clinical veterinarian and professor says that such behavior is a sign of your pup’s frustration and distress. It is best not to resort to punishment as this will only add to his stress. Also inappropriate is going overboard with affection and praise She recommends several measures, such as regular exercise. For example, taking your dog out for a walk shortly before you leave will leave him less stressed, since his endorphin levels will be at a high.
Also recommended is treating separation anxiety with behavior change. Practice leaving the pup for short periods, and then make the absences progressively longer. When you go to work, leave an item of your clothing some place where he can see it. This will maintain your bond. Hide treats around the house for him to discover. This will keep him busy and less stressed.
Ultimately, both you and your pup will get accustomed to the new routine.