If you're thinking of making a move within the next few months, there are two important things you need to know.
The first is the market value of your current property. That's the amount your home will likely sell for on today's market. When you know its market value, you'll have a better idea of how much money will be available to invest in a new home.
The second is an overview of what's available on the market. Which of the homes currently available for sale meet your criteria with respect to type of home, special features (such as a big kitchen or pool), neighbourhood, etc? How much are these homes selling for?
With those two pieces of information, and a great realtor, you'll be able to make a better decision.
Contact me for solid professional advice.