A couple weeks ago I went to the hospital because I was spotting . That day I found out I have a short cervix , my water bag is low , and I'm contracting without even feeling them . This is my first pregnancy , I'm 33 weeks now and I don't know what contractions feel like ... The people I've talked to said it hurts but I don't feel any really bad pain . If anything i just feel like I get period cramps . So they put me on bed rest until 36 weeks and gave me these pills that are supposed to stop the contractions but they're making me take the pill every 4 hours . How worried should I be ? How will I know when I should go to the hospital ? I don't want my baby to come out too early .