I kinda fit on here ... Not super young, but young!
First time I got pregnant, I was 18. Took a really rough tumble off of a young horse and lost that baby. I was in college - it was a total surprise when I woke up at the hospital and they told me that oh, I was pregnant, but was losing it (REALLY rough tumble off said horse).
Met a guy that I thought was The One and we found out that I was pregnant right before we were to get married (I was 20), but lost Baby M at 14 weeks. Ended up leaving the guy due to some crazy circumstances and moved home a few months before my 21st birthday.
Found DH (we went to HS together and became good friends before I left for school) when I moved back home. He proposed in January of '07, we started planning our wedding and I found out that I was pregnant late June. Got married at the courthouse, had our perfect garden wedding in September, and Calloway was born in February of '08!
I'll be 24 when Ari arrives in November (he was conceived on Calloway's 1st birthday, LOL!) and I'm having a BLAST. DH works for a Really Big Popular Company, brings home an alright paycheck, and I love being a SAHM. We were met with a lot of, "Do you have any idea what you're getting yourselves in to?" and "It's not easy, yanno," before Calloway was born and a bunch of anger (both of our families are EXTREMELY conservative, having babies before a ring's on your finger is a huge no-no). I've realized that wearing a wedding ring does NOT protect one's self from unsolicited comments about age.

I look REALLY young - young enough to make a hostess at a restaurant's eyes bug out of her head when I explained to her that I had an almost-16 month old home already after she asked when I was due!
I wouldn't have done it any other way. My parents were older when they adopted me (they had two biochildren, 11 & 12 years older than me) and it SUCKED. They were so wrapped up in their careers, etc, that they had very little time for me ... they had decided long before I came along that they were "finished" parenting, if you kwim. I would love to have a huge family, but I don't think DH's up for it ... But I guess we'll see!