Your chances of having a preemie are higher because your cervix is short

so i cant have a premie ??? O.o

So what does it mean to have a short cervix? Quite simply that: It’s short. During pregnancy, the normally short cervix lengthens to anywhere between an inch and a half (3.8 centimeters) to a little over two inches long (5 centimeters, as measured by ultrasound). Why the increase in length? For one, to increase the distance between your baby and the outside world. For another, to provide a tighter grip on your baby. Occasionally a mom-to-be will have a cervix that measures a good bit shorter — sometimes as little as a half-inch long. When the cervix is that short, the risk of premature cervical effacement (thinning) and dilation — and, therefore, of premature labor — does unfortunately rise.
A short cervix can’t be made to grow, but to ward off an early arrival, a doctor might order strict bed rest toward the end of your pregnancy. In extreme cases, when the cervix measures only 15 to 20 millimeters, he or she may perform a fairly simple yet controversial (because its benefits are still uncertain) procedure called a cerclage. (Essentially, the cervix is sewn together with a surgical stitch. The stitch doesn’t hurt, but, sadly, rules out sex for a while.) Another possible option to ask your doctor about: A recent study discovered that when women with short cervixes were given vaginal progesterone, their risk of delivering prematurely lowered by 42 percent and their babies were less likely to have any complications at birth.
The good news for you is that since your cervix is only moderately shortened, the risk for premature labor is fairly low, but talk to your practitioner about your concerns. What he or she will probably recommend is regular monitoring and perhaps a consultation with a physician who specializes in high-risk pregnancies.