1Plus2, thank you for giving us all the chance to "formally" introduce ourselves! It is so nice to read everyone's stories.
I found out I was expecting twins at 14 week sono. However, like Lexbeach I also strongly suspected twins. My pregnancy was totally uneventful until one day at 28 weeks I had a sonogram that showed preterm labor with cervical "funneling". In fact, they caught the contraction during sono and could measure changes. Though I was still 0 and closed thank God. From there, I went on strict bedrest, with terbutaline pump, daily uterine contraction monitoring, etc etc. I probably bounced into the hospital three or four times over the next month due to contracting over my threshold. The last time I went in I was 32 weeks 2 days - I was having 13 and 14 per hour, and the IV I was given, and all the terbutaline did nothing to touch them. Finally, I was on mag sulfate, which wasn't bad, but it only got them down to 6 or 7 an hour. At 3am on Saturday, I "broke through" the mag, and started contracting more (though painlessly). Early morning, I was 0 and 50% effaced. By late morning, I was 4cm and 100% effaced. At that point, there was nothing they could do. I was wheeled into L&D room with dh, the two of us praying over and over again to God that our babies be OK. I delivered dd vaginally w/ no drugs and ds was heading in the right direction when he turned and became transverse. We gave him about 2 minutes to turn, but no one was interested in playing any games, so into a c-section I went. Dd was 4 lbs even and 18.5", and ds was 4.5 lbs and 18". They were pink and healthy and screaming bloody murder.

They were in the NICU for almost 5 weeks, just growing, learning to suck/eat, and generally getting big enough to come home. Thank God they didn't have any problems. The only issue was both came home on apnea monitors at 36 weeks gestation equivalent. Which was good because they went off all the time during those first couple of weeks! They would urp-up milk and their heart rates would plummet ("bradycardia") -- we all got so used to doing to that over-the-knee baby Heimleich maneuver, and they would come around quickly and resume noshing just like nothing had ever happened. I can laugh about that now, but man it was hard to trust my instincts back then.
All in all, they are happy and healthy, with no problems. We had a big 6 month checkup at a developmental clinical and all was OK thank God. They do had bad reflux, but that never bothered me much. Plus, they started growing out of it around 6 months, and now it's a non-issue.
Dd is 90% for height and around 85% for weight - she caught up fast! Ds is about 60% for height and 7th for weight! He's a stringbean. Everyone always comments that he's smaller than she is, and we're always like, "Duh! What's your point?"

:
Anyway, this is a tome, but it felt so good to share. I don't think I've ever told the whole story before to anyone.

It brings back powerful memories, some bittersweet but most just true joy. Thank you!
I am so glad to get to know each of you too!