Feel embarrassed to say I'm ttc.

I'm 18 and will be 19 in August. So I am obviously an adult. And I've been with my man since I was 11 going on 12. But we don't tell anyone that we are trying due to I know I'm waaay to young and feel like people will look down on me. So I have nobody to talk to about this :/ Do y'all think I'm to young to be ttc?