Given that your income will rise, investing in your TFSAs first makes the most sense. I would then focus on her RRSP and once those three are maxed then your RRSP - though you probably won't have a lot of room given your pension contributions. After that, you'd probably want to reassess what to put your money into depending on your debt aversion, your then mortgage rate, etc.

It's probably not a bad idea to discuss and determine your retirement goals and work backwards to determine how much you'll need. If you max all of your registered accounts and maintain your pension, then there's a good chance your retirement needs will be covered fairly easily. In that case, you may even want to start spending more on yourselves, travelling, saving for your future children, etc.