I'm quite confused and could do with some advice 
We have seen our dream house. We were not thinking of moving and I have no idea how to go about it. We have lived in our current house 2 years.
Firstly, how does it work? Do we have to go through the whole mortgage process again?
How would I be able to tell if we have enough money in our existing property to be able to move up?
Finally I am on maternity leave, due to return February. How will this effect things as I don't have pay slips etc?
Thanks!!