Most women do not have smooth sailing during pregnancy and are always experiencing a variety of discomforts. Small abdominal cramps are one of the more common symptoms during pregnancy. The first thing you need to do is to get a good idea of what is going on. If this symptom occurs in the middle and late stages of pregnancy, it is considered to be related to overexertion of the pregnant woman and she should try to rest in bed. If the symptoms worsen, there may be a possibility of miscarriage or preterm delivery, so you need to seek medical attention as soon as possible.