Bhavana if everything is fine then do not worry about pre term delivery. Keep your BP on check, In case of intense stomach pain or bleeding report to doctor. Staying positive is most important , So stay positive.

Hi 
Please read these articles 
<a href="http://app.babychakra.com/article/1000">What Can Cause A Preterm Delivery?</a> 
<a href="http://app.babychakra.com/article/5285">Everything You Need To Know About Preterm Labor</a> 
<a href="http://app.babychakra.com/article/5264">Get All The Info You Need On Preterm Pregnancy And Labor</a> 
Relax stay positive

I'm 24weeks+3days pregnant with dcda twins. It's my first pregnancy.sometime feeling too much stretching type pain around starting line of upper tummy.my anomaly scan done on 22week and everything was fine babies weight was 373gm and 474 GM! Pls tell me about the all sign of preterm delivery and when I should prepare for all odds..I'm really scared.its my first pregnancy and have no idea.