those may not be universal terms so the person who should be explaining what they mean is the person who wrote them. basically "primi" may refer to this woman as never having a child before and the terms "short cervix" is referring to the description of her cervix during a pelvic examination as being short. i do not know what the medical provider meant by this vague statement nor if this implies any medical relevance.
what does primi with short cervix mean in pregnant women of 5 months