I am 35 weeks pregnant with my second baby. I have started have horrible stomach cramps I don't really think it is contractions. I have already went into preterm labor twice in the past three weeks I have received the terbutaline and steroids shot. I am also consider high risk because I am polyhydramnios and my baby has heart arrhythmia. I am just wondering if I should be worry about this cramping I have been put on bed rest since last Saturday and been drinking plenty of water.