Seeking your advice -- question on getting started

[Katie Levey]

Hi,

I'm just getting into real estate investing and discovered biggerpockets.com.  I've learned so much in a short period of time! So here's my what may be a very basic question: 

I own the home I currently live in. I want to eventually start purchasing an investment property to rent out. I have a full time job and been saving for a few years and will soon have enough to put down 20%. However, my income alone doesn't qualify me for a second home mortgage. I'm maxed out with my current home.  

How have others gotten started when you already own your own home and your income doesn't qualify you for mortgages on 1 or more investment properties? 

Appreciate your insights and feedback!