Mom was 22 when I was born. I’m her second child.
She married at 19, 2 months short of her 20th birthday, and had her first baby, my elder brother, less than a year later.
Mom was 25, Dad was 27. Oldest of three; one 22 months after me, one six years later (couple of miscarriages in between.) I was born ten months to the day after they were married. 
I’m the youngest of 4. She was 44 when she had me, 37, with my sister and early 20s with the other two.
Mom was 23, I was the youngest of 4.
She was 17.
20 or so when she had my older sister, 28 when she had me, and 30 when she had my younger sister. There were at least three miscarriages between my older sister and me though.
My dad was 33.
24, I’m an only.
Mom was…
19 when she and Dad married (he was 21)
20 when Sister #1 was born
21 when Brother #1 was born
23 with Sister #2
24 with Brother #2
28 with me.
She had just turned 20 when I was born, 21 for my sister, 22 for my brother, 27 for the next sister, and 31 for my last sister.
I was 31 when my one and only was born.
29, and she had been married for eight and a half years. And I’m the only one.
My parents were both 32 when they had me. I’m the first of two - my sister is five years younger. My parents had been married for six years before I was born, but my mom is a diabetic and had been advised that she shouldn’t have children; it took her a while to get the courage to disobey.
18 when she had sister #1
19 when she had sister #2
22 when she had me
I was 22 when I had my first child.
I’m the younger my parents’ two kids. Mom was 26 when my sister was born, and 27 (two months from her 28th birthday) when I was born.
I was 27 when I had my kid.
My mother had kids, I think, at 19, 21, 22, 25, 27, and 37. (I could be off a year or so with the older kids.) I was the one born when my mother was 37; the others are my half-siblings, and I suspect that divorce, remarriage, and a bit of a surprise had a bit to do with the gap.
On my father’s side, it’s more or less the same scenario – a number of older kids, a large gap, divorce, remarriage, and then a major surprise.
My mom was 25; I’m the oldest of 5.
Both of my parents were 32 when my sister was born and 36 when I was born.
I’m the oldest of five. She was 22 when I was born. She had the others at 24, 27, 33, and 35.
I was born 10 days after her 19th birthday. I remain the only child she ever had.
Mom was 26 and dad was 28. I’m the first born. My brother was born a year and a half later. Dad was getting a Ph.D and Mom was working to support me.
Mom was 29 when she had me, her only child.
Granny was 29 when she had Mom.
I had my daughter when I was 22.