20, just 13 weeks after I had our son. My brother and his wife lived in Florida (we live in Ohio) and we hadn’t talked about names. I gave birth first and we picked Matthew out for his first name. 13 weeks later our nephew was born and we found out they had picked the same name so they just switched his first and middle names around.
I was 28 when my first niece was born. My husband was an uncle the moment he entered the world. His brother and sister were my parents ages, in fact my sister in law was exactly 5 days older than my mom.