You're not sharing enough information in order to properly answer your question. Lending rules will allow you to rent your current residence and purchase a new residence.....as long as you can qualfiy to do so. There isn't a two year probationary rule in place unless you have credit or qualifying issues that would preclude you from purchasing again. An example would be if you just filed for bankruptcy.
If you want to learn whether you have other options available in lieu of renting, please feel free to contact me at your earliest convenience. I have 20+ years in the mortgage business. Thank you.
Skyline Home Loans
10121 SE Sunnyside Rd #230
Clackamas OR 97015