Congrats! Our first daughter did not sleep through the night until 8mo. It was draining on both of us. We shared shifts through the night, because I usually stay up late anyway (i.e. midnight or 1am) and my wife went to bed around 8pm or 9pm, I would do the feeding before midnight and she would do the one around 3am or so then I would do the morning around 6am before I went to work. Like others said she needs a break more than you, her hormones and emotions are running super high, they don't feel good about themselves, their bodies are trying to get back to normal...yada...yada....yada. As long as the baby has food and a clean diaper they are good to go, even though they cry...since that is what they do. Everyone is different and it's not easy. Be as much help as you can around the house, dishes, laundry ect. Let her get a pedicure or manicure and relax a bit. Best Wishes and congrats again!