The incidence of PIH is distributed unevenly throughout late gestation, increasing with advancing gestation. Approximately half of PIH cases occur at ter≥m37(weeks' gestation), including most cases of gestational hypertension. Early-onset PIH is often associated with severe preeclampsia. The mean gestational age at presentation was 32.7 weeks which is comparable with other study (i.e. 37 weeks) 15. The reported gestational age of onset of preeclampsia is more than 20th week of pregnancy in vast majority of patients, but recently a case was reported from Japan with typical features of preeclampsia occurring at less than 20th weeks of gestation.