preterm labor

Ciara
Any mommies gone into preterm labor? What were the warning signs for you? 
I'm 33 weeks and recently have been diagnosed with mild pre-eclampsia.. Blood pressure 140/90, having protein in urine 1+, and other mild symptoms. Last prenatal appt (32wks) my daughter was measuring at 30 weeks.. I've had a hard time gaining ANY weight. But this past week I've gained 2 pounds like it was nothing which kind of worries me. I've been having bad diarrhea all week and started feeling Braxton hicks for the first time this morning. Just a little concerned.. My doctor is watching me and knowing everything going on just want to know if anybody else has experienced anything close to this, or if anybody's had preterm labor and what their signs were