I'm currently 38 weeks pregnant and this is my first pregnancy, and have been getting crampy feelings for a while which my ob said its the start of braxton hicks. But this week i've been getting the tightening feeling which i know is normal but they hurt, its breathtaking but not unbearable. It lasts for around 30sec- 45 sec then stop . They aren't regular i've only had them about 3 or 4 times on different times but they really hurt and its starting to scare me if this hurts now how am i going to cope with labour..Is this normal??