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) . 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.