I can completely empathize with you. I have a 2 year old, 10 and 8. My third pregnancy was the hardest. Although my kids were not babies during the pregnancy, it was hard to handle all the things around me. I was depressed most of the time and felt very similar to how you feel. I found very little comfort when people would tell me to cheer up, that I was a walking miracle. But it's difficult to think that when it's not planned and you're already stressed. I have no words on encouragement I can offer you other than hang in there and have a sit down with the hub. My hubby was incredibly supportive when I was pregnant. Also, don't be too hard on yourself. It's ok if your house isn't perfect all the time, it's ok to sit down, relax and enjoy your other two children right now. I think the only thing that made me feel better was spending time with them - I had to cause I didn't want them to feel neglected when the baby came, so I took this time to enjoy them as much as I could.