My 2.5 yr old lab/pointer mix has been crate trained the past 2 years, whenever we would get ready to leave he went straight into his crate no problem. The past week we noticed that when we leave he now barks and pees on the crate door and just outside the crate. I am 35 weeks pregnant, have been on maternity leave for a little more then a month now, so I have been home a lot more and was wondering if it's because he senses a change is coming or is it something else altogether?