Thanks for everyone's replies. I wasn't meaning to judge other parents who use bouncers etc, (would be a bit stupid as we are using them), just that it's not the path I thought we'd go down. You really have no idea what parenthood is going to be like until you experience it. I really thought I knew pretty much all there is to know about babies, until I had one. The reality of having a real, live little human to care for is quite a shock - mainly the emotional health of the child is something I didn't think would be such a great responsibility as it has turned out. When I was sitting on the floor having a cry yesterday PND was the first thing that came into my mind, but I wondered if it could hit all of a sudden 4 months on, and turn on and off like that? I don't really know much about it. I don't feel depressed at all right now, but it's the weekend and DH is home, so come Monday I may feel completely overwhelmed again. I'm just going to try to relax about the whole thing, and not worry so much about the specifics, but try to be as loving and patient as possible. In the end all that other stuff is really just detail, and probably not worth worrying about as much as I was. Thanks again for all the advice/ kind words, will take it all on board.