Prodromal labor

Alexandra
Does anyone have experience with prodromal labor? I'm 31 weeks and have had consistent contractions anywhere from every 3 minutes to every 10 minutes depending on the day. At 28w2d I was in the hospital for contractions every 5 minutes, luckily no cervical change after 4 hours of monitoring. 
This is my second LO and honestly I have no idea what to expect anymore because I'm already having consistent contractions (with luckily NO cervical change)!