Where is all our money going?

I just can't figure out where all our money is going it seems like more is going out than coming in and I have lost all mysavings. We are trying for another baby because our finances were going well but now I am getting stressed out and starting to think we should stop trying if things are only going to get worse. I am really stressed about it and I can't talk to my partner he just doesn't understand. He can be half the problem with spending around here though. He can be like a child when it comes to money and we have two children so its tough. I know things will be ok when he can start doing some extra shifts soon but until then I will be grinding my teeth.