2nd baby preemie?

I had my daughter at 34weeks.. no pregnancy complications. Not sure why she came early. She was in the NICU for 10days. We are thinking about TTC (daughter is 18m).

Anyone have a preemie and their 2nd baby make it to term? If you had a preemie... what did your dr do different for your second pregnancy? I know I'll be seeing a specialist on top of my OB. I'm really nervous baby #2 will come early/earlier.. we were so lucky our daughter was completely healthy despite being 6 weeks early. So I'm really worried baby #2 will be early and obviously we might not be so lucky to have a healthy little one.

Thank you!