Due December 30th!

I'm anxiously awaiting my second babies arrival. Hopefully he doesn't make his appearance on Christmas and hate his birthday for the rest of his life! My first boy was born at 36 weeks, there were minor complications but he was perfectly healthy and it all happened naturally. My OBGYN says I'm at risk for an even earlier preterm labor this time. Any moms with advice on how common a second preterm baby is? I'm finding myself very paranoid and reading into every little pain or movement way too much.. I've just had an off feeling since I found out I was pregnant.